Today, my wife and I went and watched the Reduced Shakespeare Company's production of Completely Hollywood at the Scottsdale Center for the Performing Arts (theater 4301). There were only 3 actors doing the performance and as part of the act they included members of the audience. I remember hearing someone complain about this before saying that they go to the theater to be entertained and not to have to entertain. I sometimes feel that way, but not today.
This was very well done. The part that my wife and I "starred" in was a scene where eight members of the audience were pulled on stage and we were each given different and sometimes multiple roles. Ours was to be a young couple dancing and we put on an absolutely fantastic Oscar award winning performance.
What we lacked in youth and skill we made up for in enthusiasm. It was a lot of fun.