She likes you.
there are signs depending on which type of girl she is. Maybe she'll act shy around you or look at you often. She might also smile at you and look to the ground. Also check if any of her friends tease or give her looks when you're around :)
As a man, you don't need girls like you, Make friend with her first.
Don't let her hate you.
there! You can easily tell by observing her! Look at her facial expressions,
body language, gestures when you are around. However, it will be important for
you to make the first move and eventually speak to her. She will probably not
dare to break the ice or might be too shy. Good luck!