It's a scary world out there now ( glad I'm not single )
In the old days you could easily tell if it was a man dressed as a woman, It looked sorta like this
But now its getting tough to tell, you have some that look like this. Take a look at the dude at the :31 second mark
Wow! How hot does a dude have to be before its no longer gay to get a hummer from him?
p.s. in most of those guesses you can call it based on the head tilted just right to reduce the Adams apple.
If there's an apple, there's a banana. You are forewarned.