OK so I met this hb9 a couple months ago and we barely exchanged some words, but then she adds me on facebook. She had a boyfriend, but two days ago she sends me a message and I see that she's single again.
So here is the conversation so far:

hb9: Hello youu

me: hey how are you doing

hb9: good and you? lol you remembered me

me: i dont forget cute girls . (dont know if I should have say that) how did you find my name on facebook?

hb9: you were in Annie's friends so I added you

me: what country you come from Maria (thats her name)?

hb9: from brazil, you?


So I was thinking in waiting like 2 days and asking for her number so we can finish this conversation in person. I think she's interested and i dont want to mess up with a hot girl like this so I need your help. thanks in advance.
(and sorry for the mistakes english is not my first language)