A great exercise I learnt from Patti Stiles to practice mime and playfulness
-Player one enters. Sets up the location in as much detail as possible using mime. Leaves.
-Player two enters. Causes as much mischief as they can in the mimed environment. Leaves.
-Player one enters again, discovers mess.
You can then have player one try to fix things, and then leave again. Then have Player Two come back in again, only to have player one come in and discover them.
It’s a lot of fun, and really gets people paying attention to their own and other people’s mime.