Pass out 2 colors of cards. Everyone answers "what does it look like when X topic is present (positive goal). One color puts down cards and builds out answers in paired yes, and conversations. Then switch roles.
One player leaves the room and the group decides a short series of actions (or one action) to positively reinforce and get the player to do. Group decides on a song to sing louder/softer to hot/cold the person into doing the activity.