Whenever I'm uncertain about someones gender I do what I do with most situations I don't know how to handle. I cause a quick distraction and run towards the nearest forest line and live in the woods for a a couple of days to a week.
I'm a kinda awkward person.
This comic might cause you some Déjà vu.
Something else that might have you running is the Twogag Facebook Page.
But it'll getcha.