For many people the fascination of briefly becoming another person and, from behind that facade, experiencing both familiar and unfamiliar feelings and new situations is a good enough reason to put on a mask and slip into someone else's shoes. Many of the games are exercises recommended by theatre educationalists and trained actors. The games aim to help each individual person to learn their own role, but, more importantly, to get to know themselves and the other group members better. The disadvantage of groups that are too large is equally obvious - the exercises would simply last too long, exceeding any given time-frame, and leaving little, if any, time for discussion. Other group members can sometimes lead the sessions. In this way the group leader can be more involved in the activities and others, who would normally just follow instructions, can try the role of the leader for themselves.