Pay Attention to Her Body Language
If a girl has a boyfriend, she will keep her distance from males either consciously or unconsciously, as she does not want to cause any misunderstanding. She may be engaged in the conversation, but she will always stand in her safe zone and not get any closer to you. Another possible sign is that she may frequently check her phone or send messages out. If a girl is in a romantic relationship, she would love to share what she is doing or seeing anytime with her boyfriend.
Ask Indirect Questions
During the conversation, you can ask a few trick questions, like “Spider-man was released recently. Did you go watch it with your boyfriend?” If she has a boyfriend, she would say something like “No, we haven’t yet” or “Yes, we’ve just watched it. It was awesome.” All of these questions will get her to reveal if she has been taken.
Check Her Social Media
Social media is a good way to get to know girl’s relationship status. If she has a boyfriend, she will post the photos of her and her boyfriend. For example, you may find a post of her latest trip with a man or a Valentine's Day gift with a couple of hearts as captions. However, if you do not discover any clue, it may not be a sure sign that she is single. At times, some girls just do not like to show their love life to others.