I take "What's up" as a form of "how are you doing". Apparently this is not the right way to respond to some people. I say "Im good" and other generic polite statements to the people in the college living center floor but they give me a hard time about it. Apparently I am not saying it right or I am supposed to say "What's up?" back to them. They are annoying as hell, loud and obnoxious. I really dislike talking to them because they mock me behind my back. They are like textbook football jocks....they even litter the hall so there are a crapload of insects here... Anyways, how should I respond to them when they ask me "What's up?"