Girls, I need your help!!!!!

Tomorrow Ken Dryden is talking at my school about Canada and the future. Keeping mind that the other people there will be university students, what do I wear? If I can overcome my social awkwardness I'd like to be able to talk to him after. So what do I wear to not look like the old lady who has come back to university but serious enough to approach a hockey hero / politician? I'm puzzled.