I often find myself saying that filling out our application is the best way to demonstrate your interest in UVa. There are many schools out there that track contact with students and use demonstrated interest as a factor in admission, but UVa does not. Sending notes/emails, dropping business cards or resumes, and getting "face time" really doesn't affect application review here. Similarly, visiting the Grounds or coming to evening programs will not increase your chances of admission.
So, see the interaction you have with us prior to filing your application as a huge opportunity. Ask us questions. Ask us about the things that are really on your mind. Ask us about the rumors you're hearing from friends, family, and the guy down the street. No one will connect the questions you ask now with the application you may file in the coming months.