Index cards (Groups)
People often sit with their friends. But that means they are working with someone they could talk to any time. It can make your event more fun when you mix attendees up a little, and they will benefit from making new connections and gaining different insights.
It takes a bit of thought, but you can write on index cards (file cards) to divide a big group into smaller groups or pairs in a random way.
This is an edited version of the activity (filmed in Canada).
You might also be interested to see Index cards (Pairs)
Want ideas for your own speech or workshop?