A gay male (from my city who lives in the most "queer" part of town) called me sir without hesitation. That is the GOLD standard for passing. Seriously.
If he hadn't have I might have cried tonight because a woman called me ma'am. It hit me like a ton of bricks because although I got tons of sirs and mans all night, I couldn't take my mind off my chest and the fact that I can't even bind.
Considering my boobs and baby face, I am lucky to pass as well as I do. I obviously look male.