I know there is another place for this but it isn't working for me

Anyway there is this pretty cute girl on facebook that i met in person once and didnt really get to talk to her because one of my friends was trying to get with her at the time now they are just friends and he even said it was cool to go for it. So i barely know her and i have talked to her twice once on her profile and once on IM. She didn't talk much and i feel like i was being boring

what i wanna know is how to get her to talk more or should i just small talk it for a lil longer?