Like IrishRxMan said, wearing a tie would be your best option. I would have a couple questions prepared such as financial aid options, passing rate on NAPLEX exam, and most importantly the prerequisite courses you need to take. When you are talking with the counselor, definitely do not have your parents around. If you want your parents to see the campus, ask them nicely to go another time or, if you must, have them wait somewhere else until you are finished talking with the counselor.