This is a fun way to start a meeting and an effective tool to start building a team. It allows people to find out what they have in common. When the exercise is over, often people will continue conversations about the shared experiences and interests that have been revealed.
Here's how it works. Everyone stands in a circle. One person is selected to start talking about him or herself. The person can talk about their job, where they grew up, went to school, etc. All the other people are instructed to jump into the "conversation" by raising their hand --as soon as the speaker says something that they have in common. The speaker will point to someone (who has raised their hand)--to continue the talk, using the subject that they have in common as a starting point for talking about themselves.
Try it! It is a great way to encourage "bonding."