Believe it or not, i actually have a bit of experience to help address your query.*** And Angie completely hit the nail on the head - especially if you are shy, you want to have your 'elevator' line about why you're there and what you're doing, as well as about 20 good lead-in questions to start interviews going for your project. No matter how you present yourself, someone is going to take it 'that' way.
That said, i'd dress so you feel comfortable and strong. A bit of 'armor' will not hurt you in the psychological dept, so some type of structured topper (leather jacket perfect) would not be amiss. And no sneakers! They'll make you look like you want to run away! And since this is a costume con thing, bad-@ss ,shoes can be the perfect conversation starter, and showcase your common love of clothing.
Just have your questions ready at hand and remember that 'no thank you' are the three most important words in the aenglish language Have fun! steph
*** used to hang out with my bf Joe in the sf gay scene in the early 1980's (before AIDS). Even i, girly that i am, got hit on but just be nice and polite and interested and you'll do fine.
