(the one where one player does something and everyone repeats)
In this warm-up, one player steps into the middle of the circle and says "Everybody go..." and then does something (preferably a sound and a movement). Everyone around the circle first says "YES!" and then repeats whatever they just did as exactly as possible. Another player steps in and does something completely different, and so on.
- Have the middle player pick someone to go next to avoid people hesitating or hanging back.