There's a girl at the store I frequent and I really like her is it creepy to add her on facebook even if we have only talked in the store?

For context it's a card store I go to and quite frequently, we used to go to college together in a different town but i 100% gurantee that she doesn't remember me from then but she knows my name and details off by heart I don't even need my member card anymore I think she's really pretty and I'd love to talk to her outside of work but I'm super f***ing awkward irl stutter like crazy and turn so red its concerning but I also don't want to add her on Facebook if it's going to be creepy or weird a lot of my friends said I should just add her but I don't want to cross any lines so any advice would be appreciated

There's a girl at the store I frequent and I really like her is it creepy to add her on facebook even if we have only talked in the store?
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