Cultural Futurist & Music Critic. Reader, Writer & Photo-Journalist. Kind, Witty & Godless. Also a Husband.
More rules to consider:
+ If you know a regular singer does a particular song, DO NOT do this song. It'll seem too much like competition.
+ Tip your host DJ, but do not ask for favors.
+ Clap always to encourage others.
+ If a heckler/asshole determines to sing after he rudely yelled at another singer, when he/she goes onstage, don't heckle back; Go outside with your group for a smoke break. When he/she sees people leave when they sing, it'll send a message that their poor conduct isn't appreciated. Silent offenses are the best.