Ladies room or family restroom if presenting as female.
Even when presenting 50/50 I have been told by one or two GG ladies that I should use the women's room and not the men's. (for my own safety)
Their point was that most women will not beat you up for being in their even if they are not welcoming, however a group of hater or bigots in the men's room could ensue into a brawl.
Anyhow you have to use some judgement is my point.............
