Expert Witness 10 to 20 players. The first team stands in front of the other team. The second team studies the first team for 30 seconds. The first team goes out of the room and makes a small change in one member's appearance, such as removing a bow or buttoning a sweater. The team left in the room should plan its strategy for finding out what the change is. For example, each team member could study one member of the other team.
When the first team returns, the second team has 30 seconds to discover the change. If the team doesn't guess the change, the first team gets to go again. If the team does guess the change, it takes a turn going outside and making a change in the appearance of one of its members.
Teams can make two changes or two members can switch something, such as watches, barrettes, or sweaters.
