I'm going to two Halloween parties, and I will be dressed as a male cartoon character (I'm female). I need some advice on how to act at each party. I'm attending the first party with my mum, and most of the guests will be older adults, and I'm going to the second party alone and most of the guests will be older teens and young adults.

I'd really like to act the part and try to pass as male, but I have large hips and thighs and I can't bind my (small) breasts because I'll be wearing a low-cut waistcoat, so I think most people would "read" me. Would it be better to just act normal and let everyone know immediately that I'm actually a girl, or try my best to pass (pack my pants, deepen my voice, wear shadow makeup) even though I'm not likely to succeed?