The instructor explains that this exercise will take self control.
Members pair back to back.
On the count of three, everyone must face their partner, look each other in the eyes, and then try to remain solemn and serious. The first to smile or laugh must sit down. All who remain standing then take a new partner and the activity continues until only one person has not smiled or laughed. If you get a pair at the end who are both keeping a straight face, the rest of the group can act ask hecklers to disrupt them.