Flock of Seagulls
Flock of Seagulls is a physical matching warmup, this also known as simply flocking or "A Flock of Awesome."
Players stand in a diamond shape, facing forward. The person who is farthest forward, who has no one in front of him, then starts to do some sort of physical action. Everyone copies these actions. If the person in front turns left, right, or backwards, causing everyone else to turn left, right, or backwards, then there is a new leader. Everyone matches the person who is now in the front of the diamond until he causes everyone to turn towards one of the other corners.