Everyone in the group makes different actions that creates the sound of a rainstorm.

Have a leader (or multiple leaders) walk around the circle to lead these steps:
– Steadily rub your hands together
– Snap your fingers in an alternating pattern (rather than in rhythm)
– Slap the palms of your hands against your thighs, also in an alternating pattern
– Stomp your feet on the floor

After this, repeat the steps in reverse, as though the rainstorm is dying down.