Azizi,
Regarding    ural differences in audience response: My wife was brought up listening to Irish and Scottish music and I've noticed that when a medley of jigs, reels or hornpipes is being played, she will "whoop" when the tune changes, often drawing glares from the people around us.
I've also noticed that bluegrass and jazz audiences will applaud when each soloist finishes a break. I used to think of this as rude to the next soloist, who would have the first measure or two of his/her break drowned out, but I've found myself joining in lately.
Classical audiences always wait until all movements of a particular piece are finished, which can be quite confusing for a novice audience member.