How do I get to know this girl better? Girls please help?

[Alisha]

First things first, you should probably follow her back on Instagram and any other social media you like.
If you want to know her better, joke around with her. If you start to get boring, she may just give up on you and walk away.
Seeing as you have an unusual username, she probably spent a lot of time trying to find you on Instagram.
Maybe making a move on her is the next thing to do. A girl likes a guy to man up and make a move too.
This girl has already made a move, and probably doesn't want to be the only one doing so.

Maybe ask for her number too. This is an important move. If she accepts, which by the sounds of it, she will, this means that she is flattered.

Good luck!
>.<