Imagination and the art of improvisation both play a special role in amateur dramatics. Improvisation in particular can test the way in which individuals deal with unpredictable situations, sometimes transforming them into positive learning experiences. To vary the game, instead of swapping roles after a given time, either partner might try to take over the lead or hand it over to the other person, still without talking to each other. It is much more important and interesting if all the players tell each other of their impressions and the experiences they had during the game. A volunteer starts the game by standing in the middle of the room and performing an action he has chosen to resemble a mechanical process. The group leader places four flat cardboard squares of equal size next to each other on the floor. Each of these 'fields' is now assigned a particular emotion.