In most traditional-style clubs and singarounds (I'm talking about the UK here) I think singers are generally pretty appreciative and attentive as an audience. The kind of club where I've noticed inattentiveness veering into rudeness was an "acoustic night" set-up with a stage and a PA that attracted almost exclusively the man-with-guitar type of acts. There were too mnay big egos, and very few songs that required or even permitted participation by the audience. The performers tended to chat loudly at the bar before and after their own spot and showed little interest in the other acts.

Marje