Thanks, @alexandergreene93! It sure is a lot to think about, to say the least. He has an interview tomorrow for an MIT position, and so he says that I can go to Harvard (to which I roll my eyes and say "yeah, once I get a 180 on the LSAT...")! :)
Ask about things you are interested in or curious about. It's not necessary to ask questions in order to present yourself in a certain way, unless this is an interview -- and even so I'd stick to genuine questions.
Well I'm pretty sure they don't admit anyone that they don't interview so it is a good sign in that respect. Congrats and don't sweat it... You're an intelligent woman and speak well... Just be yourself and you'll be fine. Good luck!