While blindfolded, identify the person in whose lap you are sitting only through whistling (or if they can’t whistle, they have to grunt)
A volunteer is blindfolded and stands in the center of a seated circle while the players change seats. The volunteer now sits on any player's lap. No words are spoken. Then the person on whose lap they sit must whistle a tune. He/she must guess whose lap he is sitting on. If he's correct, the two change places. If not then they must move to another lap and try again.