How do I know if she already has a boyfriend?

[The Prognosticator]

I have had women with boyfriends hit on me before. Get her talking, if she is interested (hopefully you can tell), see how she goes about the conversation. Women by nature are more insecure than men, especially single women. So single women are usually more meek than women who are taken. If she is exhibiting an air of confidence, you can probably bet that someone is "pumping" her proverbial tires and boosting her self esteem. This is almost always a male figure. Another advantage of getting her talking is simply providing her the opportunity to purposely, or inadvertently, mention her boyfriend. Finally, you can also add her on social media, and look through any photographs to see if any of them show the kind connection indicative of a relationship. Remember that any photos she has where she is in an embrace with a male, that is unrelated to her, no matter how long ago they were taken, denote a boyfriend. Oftentimes women who are sick of their current boyfriends bury their photographs in the hopes of snagging a new victim. Hope this helped.