Two improvisers on stage. One asks “What are you doing?” The second replies with any action they like, for instance: “I’m driving a car”. The first improviser then mimes driving a car. The second improviser asks “What are you doing?”, the reply is another action such as “I’m bowling”. In this way, each improviser is doing the action the other improviser says they are doing. It’s hard as you’re doing one thing and saying you’re doing another. At some point this will go wrong. Get the group to applaud a lot and send a new improviser in to continue playing the game. It’s an elimination game. If it’s too easy, go faster. Emphasise that mistakes are fun and good, make the people who are ‘out’ absolute heroes.