Be aware that this doesn’t necessarily indicate a romantic interest. But, it’s a good sign that a girl respects your opinion or likes talking with you, which can indicate that she does like you.
For example, a girl might look at you out of the corner of her eye a few times over lunch break. If she does, talk to her!
On the other hand, if she doesn’t stand near you, it may indicate that she’s shy or would like you to say something to her first.
But, if she doesn’t touch you, it doesn’t mean she isn’t interested. Instead, try chatting with her.
Online chatting is a casual way of talking to someone and allows the girl a level of control over the conversation. If she’s not interested in the conversation, she can just close the chat session, or not respond to your message. This would be a good indication that she’s not interested in you.
Don’t lose hope if she doesn’t start a conversation, though. She could be busy, or hoping you’ll reach out to her. Send a short message with a question; something like, “Hey, what did you think of the history lecture today?”
On the other hand, if she responds with a dry “Ok,” or “thanks,” she may not appreciate the flirting. Don’t be explicit when you flirt, and avoid anything too pushy or obvious.
“Which school did you go to before you came here?” “I didn’t see you on the bus; does somebody drive you to school?” “Have you taken Algebra with Ms. Smith?” If she doesn’t know you or doesn’t seem interested in sharing, back off. You don’t want to come off as creepy.
Remember that girls can be shy, too! It may take a few short conversations over a period of a few weeks for her to start opening up to you. Don’t take it as a bad sign if she doesn’t launch into a full-blown conversation with you right away.
It’s always nice to return compliments, too. This can let a girl know you’re interested. If she compliments your jacket, for example, say “thank you,” and then tell her you like her earrings, for example.
As with nearly all of these signs, starting conversations could indicate that a girl has either a platonic or romantic interest in you. There’s no real way to know for sure without taking a direct approach, like asking her out.
For example, if she says “I really want to see that new Marvel movie this weekend!” say something like “I’ve been wanting to see it too! Any chance you’re free to see it on Saturday evening?”
Say something like, “I’ve enjoyed talking with you over the past few days. Any chance you’d be interested in grabbing a soda together after school?”
