Not making eye contact means not looking people directly in the eye.
Nothing really... Like if you have eye contact with your teacher, it doesn't mean that they like like you. o.O
It could mean that she is just shy and is not comfortable in making eye contact.
It could probably mean that you're staring at her, so she's staring back..
Probably that you're attracted to the person with whom you're making eye contact.
Keep it away from your eyes
that is usually not mean but it also can be a smirk and that is very mean but if you ask me i would take it as a mean smirk
When someone smiles at you after making eye contact, it could mean she likes you, it could mean she's just being polite, or it could mean nothing at all. It could even be a nervous reaction.
It means that she has a crush on you!
sometimes it does or it means there scared.
this means they want you to talk with them.
nothing