Icebreakers for a conference of 100 or more people

Head count: 100 to 500 delegates. Nobody meets everyone at this size, so the icebreaker's job is smaller and more useful: get each person talking to three or four strangers early, so the coffee breaks work on their own.

At a team meeting an icebreaker is about getting to know each other. At a conference of 300 it is about permission. Most delegates would happily talk to the person beside them; they are waiting for a reason. Give them one in the first fifteen minutes, give them another after lunch, and the room runs itself. Here are the icebreakers and energisers that hold up at 100 to 500 people, the ones that don't, where each goes in the programme, and what the person on the microphone has to do.

Icebreakers that work at 100 to 500

The stand-up grid

The MC reads statements and people stand if they're true: "Stand up if you travelled more than two hours to get here. Stay standing if you got up before six." Four or five of those, then: "Everyone standing, find someone sitting near you and tell them why." It works in theatre seating, needs nothing but a microphone, and takes five to ten minutes. The variation for a room with space is the line: "Arrange yourselves by how far you've travelled", then talk to whoever's beside you. Write the statements from the delegate list so they're about this crowd: years in the industry, which region, first time at this event.

Human bingo, done well

Human bingo has a bad name because it is usually done badly: twenty-five generic squares, ten minutes, and a scrum. Done well it is the best quiet icebreaker there is.

• Sixteen squares, not twenty-five. A four-by-four grid can be finished in a morning.
• Specific to the room. "Has worked here less than a year", "Has been to every one of these conferences", "Has a job title with 'lead' in it". Use registration answers if you have them.
• Nothing personal. No marital status, no health, nothing a person might not want to say to a stranger.
• One signature per person. That is the rule that makes people circulate rather than fill a card with their own team.
• Run it over the morning, not in a slot. Hand it out at registration; the prize goes to the first full card handed in at lunch, announced from the stage.

Mixing the tables on purpose

With cabaret seating, the seating plan is the icebreaker. Mix departments, regions or companies on every table, and put a question card in the middle that the table answers together. Then move people once: before the second session, the MC asks the person on each table with the birthday nearest today to move two tables clockwise. Lunch tables with a topic sign on each ("AI and regulation", "first-timers", "hiring") let people choose who to sit with, which the shy prefer to being chosen for.

A quiz between sessions

Ten questions on the screen, the tables as teams, ten to fifteen minutes. A short quiz is the most reliable energiser after lunch because everyone knows how to play it and nobody has to stand up and perform. Make one round about the company or the industry and one about the host city, keep phones face down, and read the scores out before the next speaker so it doesn't eat their time. If the tables are mixed, the quiz mixes the room too. Our hosted quiz is built on exactly that.

Treachery! circles in a breakout

For a room that wants more than ten minutes, Treachery! is the icebreaker with a plot. A breakout of 16 to 30 sits in a circle, a few are secretly traitors, and for about 50 minutes the room argues, accuses and votes. By the end every delegate has spoken to most of the circle and has a story to take back to the main hall. A conference runs it as back-to-back sessions through the day, or as several circles at once with a host each; how to choose is in a Traitors-style game for a large group.

Energisers for the afternoon

An icebreaker opens the day; an energiser rescues the hour after lunch. They take three to five minutes and nobody has to know anyone.

• The rock, paper, scissors tournament. Everyone plays the person beside them. The loser becomes the winner's cheering section, following them to their next match. Within three minutes the hall is two roaring halves behind two finalists. It works at 500.
• Stand up for true. A round of true-or-false statements about the morning's talks, standing for true. It doubles as a recap.
• Three new people. At the end of a session the MC sets a task for the break: find three people you haven't met, from a different team, and ask each what they're taking away. It costs nothing and it changes the coffee queue.

What fails at scale

• Going round the room. Thirty seconds each for 200 people is an hour and forty minutes.
• Anything one person says without a microphone. If half the room can't hear the instructions, half the room doesn't play.
• Long rules. If it takes more than two minutes to explain, a hall loses interest before it starts.
• Forced disclosure and forced touch. "Share something nobody here knows about you" and trust exercises lose the people you most wanted to reach.
• A download. An app that needs installing and a wifi code will lose a third of the room at the first step. A poll on a web link is fine if the wifi holds; test it full.
• No opt-out. Give the people who'd rather watch a job: the bingo judge, the quiz scorer, the timekeeper. Most of them join in by the second round.

Where it goes in the programme

A one-day conference of 200 might run it like this:

1. After the welcome, before the first talk: the stand-up grid, ten minutes. Bingo cards already in hand from registration.
2. Morning break: bingo running; the MC reminds the room of the one-signature rule.
3. Before lunch: the bingo winner, from the stage, in under a minute.
4. After lunch: an energiser, five minutes, then the speaker.
5. Mid-afternoon: Treachery! sessions in a breakout room, or a ten-question quiz in the main hall.
6. Before the drinks: the quiz scores or the Treachery! reveal, and the traitors take a bow.

The rule underneath: the icebreaker comes before people have settled into who they arrived with, and the energiser comes when attention is lowest, which is almost always straight after lunch.

The MC's job

At this size the icebreaker is only as good as the person on the microphone. A stage host:

• Sets the tone in the first minute. Warm, quick and sure of the instructions. If the MC is nervous about the icebreaker, the room is too.
• Explains in one breath and goes first. "Stand up if..." and the host stands.
• Owns the clock. Every activity has a hard stop, and the host keeps it even when it's going well.
• Fills the gaps. A late speaker or a slide that won't load is a two-minute stand-up round, not a silence.
• Links the day. The bingo winner, the quiz scores and the Treachery! reveal all come back to the main stage, so the day feels like one event rather than a list of talks.

It is the same skill as hosting an awards night: a host who holds the room and keeps it on time without making it about themselves. We do both; see awards and MC hosting.

Running it yourself, or having it hosted

Everything above can be run by a confident member of the events team with a microphone and a printed timetable. Where it is worth bringing someone in is the stage itself: a whole day of links, gaps and icebreakers is a job, and the organiser has another one. A Get Social stage host is £950 a day and runs the icebreakers, the energisers and the timings from the stage; Treachery! sessions are from £20 a person, minimum £600 a session. There's no VAT to add: Get Social is not VAT registered, so the price you see is the whole price. Travel outside London is extra. If you're exhibiting rather than organising, see how to draw a crowd to your exhibition stand.