One of the buildings stands out, the words "Club Masquerade" written on its sign in elegant cursive and gentle, calming lounge music emanating from its entrance. The "club" in its name is what attracts you most - even at this time of night, you can't imagine a club with no one in it. You're almost guaranteed to find someone in there who can help you get your bearings.
Walking in the door, you find yourself in a small room. To the left is a pair of doors, one marked "Gentlemen" and the other labeled "Ladies". On the right, you see a rack of odd, latex full-body costumes. More importantly, you can see the door into the club straight ahead, with a notice board nailed to it reading:
"Come on in to Club Masquerade and leave yourself behind. No admittance without costume. Failure to comply will result in an immediate ban from the club. Please feel free to take one of our complimentary costumes from the rack to your right."
You aren't the sort to go for this sort of thing, but you really want to get into that club and can't risk being kicked out, so you turn to the rack and start looking for something to wear.