Yeah.
She's at least interested in you. No doubt!
You don't need to hang up on things such as "So do you put your arm around every girl you meet like this?".
No harm done.
My advice would be.
Don't wait too long, she'll lose interest and be gone before you know it.
Be sure to make the move!
Go for either the classics
PUA: Would you like to kiss me?
Her: Yes / No / I don't know
PUA: Then what are we waiting for? / I never said you COULD, but you had the look on your face - made me nervous / Let's find out (:
Or do as I've done, go for sponatanous and do something that PUA probably wouldn't have done!
(ONLY if she have given you some signs and you KNOW you can kiss her)
Me: Knock Knock
Her: Who's there?
Me: A kiss *kisses her*
Me: What's that over there? *pointing behind her*
Her: What? *Turns her head*
Me: *As she turns back* Suprise (: *kiss*
Me: *Lookin at her lips , lickin my own lips*
Her: What?
Me: Wait *Takes out paper and pen and start writing-don't let her see what you're writing* A kiss inc. -> Fold the paper once -> You REALLY want to know? It'll be at your own risk! Don't tell me I didn't warn you -> Fold the paper -> NOOO you opened it! -> FTP -> I'm telling you, don't open it! -> Do not open, if you do - fold it up one at a time.
Me:Okey, I'll put this in your pocket - and anywhere at any time. You can open it!
But do only fold it once at a time! And btw, if by the end of the day - if you did not open it, Let's throw it away

Her: *Opening it, keeps opening, keeps opening, keeps opening -> Last time, opening... Reading "Kiss incoming."
Her: What? *looking up*
Me: *Kisses her*
Point is - as she have shown interest - GO FOR IT!
