Scientific signs to look for that say she is interested in you:

1. Whenever a girl is touching or flicking her hair.
2. Whenever she is licking her lips.
3. Teasing is also a huge sign.
4. She gets really close.
5. She tends to share some stuff back with you.
6. Acts friendly when you go for a chat.
7. She maintains an open posture.
8. She always tends to mirror your postures when you two are in a conversation.
9. She tilts her head along with that she gives a smile.
10. She maintains a really playful eye contact.