Asking a few intelligent questions doesn't hurt either. These questions vary from place to place and are location/school specific. A little research on where you're going (school) and the city/town will be ample. It also shows the interviewer(s) that you have an interest in where you are and that you've taken the trouble to learn a few things about them...kinda gives them face in a round-about way!
there are soooo many ways, i usually just go in casual, dressed smartly, but casually so I'm comfortable, look em in the eye when they ask questions, relax and be friendly but not condescending....works for me. a bit of well placed humour works as well. I'm no expert, but my way works for me. In saying this, I'm different to all of you, as much as you're different to me, so whatever works for you, go with it.
Just relax, be confident but not arrogant, appear interested in the school and environs etc and things should be ok.
Good luck.
