If a girl remembers small details and things a guy says weeks later, would you assume she likes him?

Bootzzzaaa
Being a bank teller, she obviously sees dozens of people every day. But she not only remembers my name, but she'll bring up small details and things I've said weeks later, insignificant things I don't even remember saying. It surprised me a little that she remembered any of it. Would you assume she kind of likes me, or would at least respond well if I told her we should hang out, or ask her to write her cell phone number on the back of her business card?
If a girl remembers small details and things a guy says weeks later, would you assume she likes him?
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