Why departments stick together at every company party

By half past eight the room looks exactly like the org chart: sales on the left, production on the right, the new starters at the edge. That is not down to unfriendly people. It is down to decisions you made weeks earlier. What actually helps.

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The venue is lovely, the food is good, the mood is fine. And by half past eight the room looks exactly like your org chart. Sales is sitting on the left, production on the right, IT has settled into the corner by the bar, and the four colleagues who joined in the spring are standing at the high tables talking to each other, because they do not know anyone else.

Afterwards people tend to say the staff simply did not want to mix. That is rarely true. Most people would have nothing against it, they just do not do it on their own. This article covers why that happens and where you as the organising team can genuinely change the outcome. It is written for companies in the range of one hundred to five hundred employees, which is where people end up in the same room without ever meeting in day-to-day work.

The problem is not unfriendliness, it is uncertainty

Anyone arriving at a party looks for a familiar face first. That is not a character flaw, it is the fastest route to feeling safe. Once that spot is found, it gets defended. Standing up and joining a group of strangers means interrupting a conversation, introducing yourself, and taking the risk that it turns awkward. For most people the risk outweighs the reward.

On top of that comes a very practical hurdle: how is the colleague from purchasing supposed to know what to talk about with the colleague from the workshop? There is no shortage of goodwill, there is a shortage of a reason to start. That is where you can intervene, in five places: arrival, seating, the running order, the reasons to talk, and the day after.

The first half hour decides the whole evening

Group formation freezes within the first thirty minutes. People who arrive together stay together. People who sit down first rarely get up again. That makes arrival the moment with the best ratio of effort to effect.

No seats for the first hour. If you can, start with a standing reception. Standing people change groups many times more often than seated ones.1 Once somebody has sat down, the evening is largely decided for them.

High tables for five, not for ten. A large table produces two conversations that nobody else can get into. Small tables force a single conversation and still leave room for someone to join.

Name badges that actually give you something. A badge with just a name helps nobody. Use three lines: first name large, department small underneath, and as a third line something that opens a conversation. The year someone joined works well, as does the site or the town they are from. Anyone who reads that the person opposite has been there since 1998 immediately has a question.

Someone whose job is introducing people. Pick two or three people who have no other duties that evening and whose only task is bringing groups together. "Can I introduce you to Markus, you both worked on the site project." It sounds trivial and it is the single most effective measure we know of. One condition: this role needs people who enjoy doing it, not the managing director out of a sense of duty.

For smaller teams: below sixty people you do not need name badges. There it is enough to stagger the arrival so that not everyone turns up at once, for instance with a shifted start for different shifts.

Free seating sounds generous and reliably produces departmental clumps. If you make one unpopular decision that evening, make it this one.

A seating plan only mixes well, though, if it is not purely random. Pure randomness regularly puts one person alone among nine strangers, and that person has a long evening ahead. What works is a mix with anchors:

  • Two or three people per department at each table. Never one on their own. Everyone then has one familiar back and seven new faces.
  • Spread the managers out. A table with half the leadership team sitting at it is a table nobody else sits down at.
  • Place new joiners deliberately, and not all together. Someone who has been there three months is best seated next to someone who has been there fifteen years and enjoys telling stories.
  • Think about languages and shifts. If several languages are spoken in production, put at least two people at each table who can talk to each other in the same one.

The second half of the seating plan is the change of seats. After the main course is the natural moment: the tables are cleared, dessert appears at a buffet, and the places are reassigned. Announce that before the first course and you will get grumbling. Simply do it, by putting dessert somewhere else, and you get the same result without the discussion.

The running order needs gaps

The most common mistake at carefully planned company parties is a schedule that is too dense. If something happens on stage every twenty minutes, no conversation lasting longer than twenty minutes ever gets going. And those are exactly the conversations that make two people recognise each other in the kitchen in January.

A few rules of thumb that hold up in practice:

Speeches short and early. Everything that has to be said belongs in the first hour. An address at ten at night interrupts precisely the conversations you spent the whole evening trying to create.

A buffet rather than plated service. The queue at the buffet is the best mixer you will ever get for free. People stand next to each other by chance, have a topic right in front of them, and have a ready excuse to move on. Two smaller buffets at opposite ends of the room beat one large one.

The bar does not belong in the corner. Drinks, dessert and the photo station should be as far apart as possible. Every walk across the room is an opportunity.

Stations rather than a stage. If you want a programme, spread it around the room: a photo station, a table of old company pictures, a tasting, a table football. Stations work in parallel and voluntarily. A stage works serially and turns everyone else into an audience.

For smaller teams: a single buffet is enough, which makes separating food and drinks all the more worthwhile. If both are on the same table, half the company stands in one place and the rest of the room stays empty.

Conversations need a reason, not a game

This is the point where agencies like to propose icebreaker games. Speed dating, drawing postcards, two truths and a lie. With adults in a work setting that rarely works, for one simple reason: it is compulsory, it happens in front of an audience, and anyone who does not join in stands out. That produces exactly the pressure people want to avoid at a party.

What does work meets three conditions. It runs in parallel, not one person at a time in front of everyone. It is voluntary, so walking past costs you nothing. And it gives people something to do or look at together, instead of asking them to talk about each other.

A table of printed photos from the past twenty years meets all three. So does a tasting. And so do photo challenges, which is exactly why they are the most effective item on this list.

Challenges: the task takes the first step for you

A photo challenge is a small task you define in advance and that becomes active during the evening. "Take a photo with someone from another department." "Take a selfie with someone you have only ever seen as a tile in a video call." "Photograph the person who told you something new today."

The trick is not the photo. The trick is that the task supplies the opening line.

The hard part of talking to a colleague you do not know is not the conversation, it is getting into it. Approaching someone requires a reason, and "I wanted to get to know you" is too direct for many people. A challenge hands that reason over for free: it was not my idea, it is written up there as a task. And if it turns awkward, you can retreat behind the task without anyone feeling embarrassed. That emergency exit is exactly what icebreaker games take away, and exactly why they fail.

The photos are the second effect, not the first

What happens next is usually underestimated. The pictures land on the screen, and standing in front of it are two people who also do not know each other, looking at a photo of two others who have visibly just met. Usually it is out of focus, someone is laughing crookedly, somebody walks through the background. People talk about that. One encounter turns into several.

There is also a signal you can hardly send any other way: as soon as the first challenge photos appear, it becomes visible in the room that this is a thing people here do. For everyone still hesitating, the barrier drops noticeably. An appeal from the stage never achieves that, because it sounds like an obligation. Twelve photos on the screen manage it, because they look like normality.

How to spread challenges across the evening

With EventWall each challenge gets a start time and a duration, they do not overlap, and they therefore run one after another. That is more useful than it sounds, because it lets you match them to the phases of the evening:

  • On arrival, something very low-threshold that costs nobody any effort. A group photo with everyone currently within reach.
  • After the main course, when everyone is fed and noticeably more relaxed, the actual mixing task: the photo with someone from another department, another site or another shift.
  • Later in the evening, something silly with no purpose whatsoever. Two people with the same shoes. The project of the year recreated as a freeze frame, without words.

Three to five challenges across an evening is plenty. Set ten and you have built a programme again, and with it the voluntary character is gone.2

Two things we would urge on you. Word the tasks so that nobody is put in the spotlight: "take a photo with" is good, "introduce yourself to everyone" is not. And if you offer a prize, offer it for taking part rather than for the best picture. The moment it turns into a competition, the very people you were trying to reach drop out.

What is left on Monday

The underrated part of a company party is the week that follows. New contacts fade quickly if nothing anchors them. Someone who spent two hours on Friday talking to a colleague from another department will say a friendly hello on Monday and still never pick up the phone.

What helps is a shared reference point that outlives the party. Photos are the most obvious one, because they open a conversation in the kitchen without anyone having to organise anything. Provided they exist at all and are not sitting in five different chat groups.

Also effective, and rarely done: if you are sending an email to everyone in the days afterwards anyway, name specific moments instead of general thanks. "Thanks to the logistics team for the act after the main course" gets read. "Thanks for a lovely evening" does not.

For smaller teams: this is where Monday pays off most. In a company of forty, after a good party everyone genuinely does know everyone else, and that state lasts until the following summer once you have set it in motion.

Where a shared photo wall fits in

A photo wall replaces neither a seating plan nor a person who introduces people to each other. What it is, though, is the place where the challenges from the previous section come together, and it covers several of the points above at once without being a programme item itself.

During the evening it is a station in the room: a slideshow runs on the screen, guests upload photos from their phones via a QR code, with no app and no sign-up, and people who are looking at the same thing end up standing next to each other automatically. Anyone who does not want to join in walks past and misses nothing.

After the evening it is the shared reference point: all the pictures sit in one place instead of in five chat groups. You as the organiser then download them at full resolution3, individually or as an archive, and pass them on in whatever way suits your company. The workforce gets the gallery link to look through. If you work with moderation, no photo reaches the screen before someone on your team has approved it.

We have covered how to keep that legally clean in a separate article: Photos at the company party without a GDPR headache. There is also a dedicated page on corporate events in general.

Checklist for your next staff party

  1. Plan the start as a standing reception, at least forty minutes with no fixed seats.
  2. High tables for four to five people rather than large rounds.
  3. Name badges with first name, department and a third line as a conversation opener.
  4. Name two or three people whose job that evening is making introductions.
  5. Build the seating plan with anchors, never one person alone from their department.
  6. Spread managers and new joiners deliberately across the tables.
  7. Account for languages and shifts when planning the tables.
  8. Force a change of seats after the main course through where you put dessert.
  9. Put all the speeches in the first hour.
  10. Position the buffet, the bar and the photo station far apart.
  11. Two or three parallel, voluntary stations instead of a stage programme.
  12. Prepare three to five photo challenges, at least one of which deliberately mixes across departments, sites or shifts.
  13. Match the challenges to the phases of the evening, with the mixing task after the main course.
  14. Word the tasks so that nobody is put in the spotlight in front of everyone.
  15. Decide in advance who downloads the photos after the event and how they reach the workforce.

Frequently asked questions

Doesn't everyone move seats after the first course anyway?

Some do, most do not. Once someone is seated they tend to stay. That is why a seating plan does more than anything you try later in the evening.

How much programme is too much?

As a guide, there should be at least forty-five minutes between two fixed programme items. Anything tighter interrupts more conversations than it creates.

What about colleagues who just want to be left alone?

They should exist. That is exactly why voluntary participation and parallel stations matter. A good party also has corners where you can sit quietly without standing out.

Does everyone really join in with challenges?

No, and that is not the goal. In our experience some guests take part actively, a larger group watches, and both work. What matters is that watching is not a refusal: someone who only looks at the screen still has a topic in common with the person next to them.

Is all of this worth it for a small party?

Below sixty people, a seating plan and name badges are usually unnecessary. The points about the running order, the stations and the day after apply regardless of size.


Planning your next staff party? event-wall.com/en/corporate has everything on corporate events, or you can create an account directly and try a wall free of charge.

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