Don't wear the same thing as everyone else. Just wear your own style. Don't wear anything too stuffy or too skimpy. I saw girls at the SF show wearing crop tops and bra-lookiing shirts and it was super cold before and after the show. Definitely wear comfortable shoes, especially if you are standing on the floor and then you have to stand for some time waiting to get in. I didn't wear anything crazy. I looked like I just came from work wearing a collared blouse, gray cardigan, black leggings, and flats. I thought a lot about what I was going to wear beforehand but I was like ~whatever in the end.