Everyone finds a partner. One Partner is the "Personal Trainer" (PT), the other is the client/student. When the instructor says “Go!,” the PT has 1-2 minutes instructing his/her partner to do any activity, but they must perform it with the partner. Jumping jacks, pushups, kicks, punches, blocks, sprints, balance, stretching, etc. Instructor will call "Switch!" and partners reverse roles.
Run through the crowd
Everyone gets in a circle. Everyone faces left. Every other person turns to face the person behind. Everyone runs around the circle in the direction they are facing, weaving in and out of every person they pass.
Have students lay on the floor on their stomachs in a straight line. Each person puts his/her feet across the shoulders of the person behind. Right leg on right shoulder left on left. Everybody up together. Everybody down together.