An excellent exercise to get to know and learn to trust and touch each other.
5 volunteers, 4 of whom must hide the fifth person and use nothing but their bodies for this. The other students stand around the group and try to see parts of the fifth person's clothes, shoes or skin.
It is great fun for the other students to observe and find uncovered parts of the person.
Variations: Try this game with fewer and fewer people hiding. If the task becomes impossible, tell them that they can use parts of walls. Of course it is easiest to use a corner, but let them figure it out for themselves.