Games - Moving Around Games - Room Boom Boom

Walk around the room - boom boom.

This is a game my daughter described to me so I might have missed out some bits but it seems to keep her amused at Girl's Brigade.
One person calls out: "walk around the room".
Everyone else calls back: "walk around the room, boom, boom!" and proceeds to walk around the room.
Then the caller calls out something everyone should such as "hide under a chair" and the last person to do this can either be out or could become the caller depending on how you want to play it. Other examples of this that could be called out are "sit on a table", "go under someones legs", "lie on the floor", "stand on one leg" etc...
The caller then calls out another action - i.e. "skip around the room" and all the players call back "skip around the room, boom, boom." and play continues as before. Each time the caller calls out a different way of moving around the room and a different thing to do and not be the last to do it.