This improv game is in the following improv game categories:
Get everyone in a big circle. One player starts by making a little gesture,
perhaps with a little sound.
His or her neighbor then tries and does exactly the same. And so on.
we expect the gesture/sound not to change, it will.
Watch for movements that suddenly change left/right arm or leg. This is
not really supposed to happen, but it will. Once happened, it should be
accepted by the next player.
Also watch/listen for little moans or sighs that players might make before or after
their turn - these should also be taken over by the next player.