yupp agreed. not being a dick and being open minded tends to work very very well in just about any situation.Mr. Underson said:"Don't be a dick."
It has served me well and covers every situation I come across.
also, one i'd like to add is, "If your questioning saying something, then don't say it, keep your mouth shut."
that will save you many, many times, as you have no idea how everyone around you will react when you might mention/say something a potentially personal/attacking.