You start by sending a clap around by turning your body toward your neighbor and clapping in their direction.
Try to go as fast as possible until all get good at it.
Gradually introduce new rules and if anyone makes a mistake, everyone puts their hands in the air and freaks out: starts running and screaming to change positions in the circle, screaming Freak out.
ADD RULES GRADUALLY
BOING put your hands in a defensive position (in front of your face, elbows and wrists together, hands in fists) and say Boing: the clap gets bounced and changes direction
GONG put your hands together like you are praying and squat while saying Gong with a deep voice: everyone has to do the same
HIGH-FIVE shout High five and everyone has to go in the middle of the circle to high five someone
WOOP send the clap across the circle, followed by a sliding gesture with hands (top hand slides toward the person): clap gets transferred to a person across the circle (important: make it clear by showing with the slide and looking at that person)