um... just be your more intellectual self if that makes any sense. Do not try to be anything you are not, if you are an artist talk about it. Sometimes its nice to show them that your passionate about one subject (if this is true about you) so that they will remember you more. And just have fun. If they trip you up with a q. (which I don't think they will) just take a second to think about it and answer it like any other question. And if all else fails, think of this as a fun, exciting time, to act like D'Caprio in the movie Catch Me if you can (But only if you are a really good actor
) jk. But really, just talk to them causaully with respect and talk about why you are passionate.
Good Luck. Hope this unorganized rant was a little helpful.