This game is a good ice breaker activities for new groups where people may not know each other that well.
Hand out a pen and paper to each person and ask them to write something exciting they have done in their lives - for example "I have been sky diving" or "I have been in hospital for a week" etc. Encourage people to think of something unique and interesting (though be prepared for some people to struggle to think of something!)
Collect all the pieces of paper and read them out loud to the group. The group has to decide "who did it". The game guarantees you will learn something new about other people in the group!
For a variation on this game, see Two Truths and a Lie