Talking to girl on facebook help?

[Jerry]

I messaged the girl i like because i thought she changed schools.. well she is soon but still very close, anyway i dont know what to say to her reply.

conversation so far:

Me: Hey
Did you change schools? (she posted on fb saying she's changing schools)

Her: Hey, um not yet
not to be weird or anything but do i know you?

Me: Aha i'm a friend of _____.

Her: Oh you're the one he was talking about.

Me: What did he say?

Her: Nothing Bad don't worry lol

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How should i reply!!!!!!!!!!!!!???
Don't have to be an a hole, because i don't interact with girls very often
plus i didn't ask for your opinion i asked for help

[Angeleyes]

Just say: lol ok cool.