There is this one girl that works in my office who is fairly new. When she was hired I assumed she was a lesbian. I guess because she dresses somewhat androgynous and sterile. Kind of perfunctory business casual. Also initially she would also describe her living situation with "we" and "us". I figured she was playing the pronoun game to avoid bringing up her orientation. Anyway yesterday she told me she went into the ladies room on another floor and somebody in the stall yelled, "Hey!! this is the women's room, get out!!" She said she was like, "Um, I'm a woman" and the woman in the stall was silent. It is funny because she probably saw her clothes through a crack in the stall, or her shoes and assumed. Her face is clearly a woman though. I just think it is funny because she had no idea why this woman would think she was a man, but it was totally obvious to me.
But yeah, she's not a lesbian and she isn't a man.