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.
@schyler.cox Why would you recommend not taking the October exam? Most law schools take the top score, including Georgetown, Cornell, and Northwestern. If I end up with a 170+ I'll just not retake.
If you have a regional preference for employment after law school, rankings become much less important, and respective job placements, alumni networks, and regional reputation becomes much more critical.