Sitting in a circle there are various commands that can be used to pass the impulse around the circle. A simple "yeehar" with a thrusting arm sends it to the person next to you. A "Ho-down" with a thrusted elbow downwards, reverses the direction. A "hey barn" pointing your hands upwards, skips a person And a spinning arm movement followed by calling someones name out as if performing a lasso, sends it to a random person.