No one is perfect, so its a waste of time putting other people down for pleasure instead trying to respect to their faults is the least one human being can do for the other. Respect is the basic quality that one should possess while socializing to have any kind of interaction in any part of the world. Treat people the way you would like to be treated. Don’t expect them to treat you any better than you treat them because you get what you deserve, not more than that (unless that person is attracted to you). Even if that person is attracted to you and you are not, respect it.
A little tidbit to remember while Socializing.