I'm female, and I like traditionally "male" things. I do martial arts. I do DIY. I don't wear make up or dresses (hardly ever). I hate pink, sparkly things. I like science fiction. I have no interest in having a manicure or shopping for pleasure.
People therefore assume I am a lesbian, but I am certainly not. I'm interested in men, and only men. I've even had people tell me they "know" I'm a lesbian, and I'm just living a lie and in denial. I think I know my own sexual tastes!