sounds like a good experience. I agree with many of your comments above, however usually in my one-to-one performances it is important to me that it isn’t clear to the audience participant that this is a performance. For me it is a performance, (I am in a role) but for the others around, that shouldn’t be clearly the case. In fact when i did a performance for the Hull time-based arts in 1996 ( see: http://www.sonjavank.com/change.htm) what was a challenge was getting past the facade when I interacted with artists or those who knew I was part of the festival.