Girls, What would I mean when a girl who barely knows me accept my friend request on favebook?

This girl who I like she serves me for coffee regularly. She and I have just naturally clicked we started talking like we knew each other, even when neither of us had spoken to each other. I'm still this guy who gets his coffee but she accepted my friend request
Girls, What would I mean when a girl who barely knows me accept my friend request on favebook?
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