I don't really know her, we've met on someone birthday party... don't know what she saw in me.
And we have not spoken since then.

Some time later she invited me (through my friend) to her friend's party, when my friend and I got there she was gone (some family problem, she came later for her bag crying - so she didn't run 'cause of me).

Week or two later she saw me in restaurant, she hided behind her friend and quickly run from there, i was like "lel".
Then she started to follow me on instagram and like all my photos (srsly, she couldn't just text me?).

I like her too, but i never had a girlfriend so I wouldn't even know what to say her, or speak about.

What should I do?