Answer:
to find out if a woman is a lesbian, it all depends on the woman. If the women is very outgoing and is not afraid to answer anything just ask. If she is not like that than you might have to dig a little deeper, but for caution dont go to far or "your woman" will soon be someone elses. Also if she is your woman than she clearly is not a leasbian. I would not be surprised though if she is Bisexual which means "likes both sexes".