I'm set to interview a guy who is looking for a job with my firm. This will be the first candidate I have ever interviewed. So, from those of you who have interviewed others, what interviewing tips would you give? What kinds of things do you look for in a candidate and what kinds of things do you tend to overlook? EDIT: I meant to say "tips" in the title, not "tios." If a moderator wants to fix it - cool, if not, not big deal.