When I was younger, in my twenties and early thirties, I was read as male a lot. Sometimes it only lasted while I kept my mouth shut. Sometimes it killed me to say anything because I wanted to dream for a little while.
Waiter: What can I get for you gentlemen?
Me: Uhhhh...
My Partner: I'll have a patty melt with no onions and a Coke.
Waiter, to Me: And you, sir?
Me: Uhhh <clears throat and half whispers> baconburgerandacoke.
Waiter: Oh, I am SO sorry, ma'am.