A theater game played by improv comedy troupes such as ComedySportz. Also seen sometimes on Whose Line is it Anyway?.

Two players start on stage. The rest stand off to the side. An audience member is called up to pose the players in any position they wish. When the game starts, the two players must improvise a scene to justify the position they start out in.

At any point in the scene, one of the players on the sidelines can call out "freeze!" The players on stage freeze, and the third player enters, and replaces one of the frozen players, mimicing their position. A new scene is now improvised from this position.

Repeat the above about 10 times. It's good clean fun. Except when you're frozen in a position that's obviously sexual.