Dress up as the animal you most relate to and let your animalistic and primal nature come out! Channel your spirit animal, dress up as your favorite little critter or become a sexual beast of your own creation! As for normal there is no enforced dress code but not putting any effort into your outfit at all will definitely make you stand out.
If you don't know what to wear then black clothing is strongly suggested but again try to dress in something you would consider sexy and edgy.