Girl tied my shoes?

Some girl that is 17 (2 years older than me) tied my shoes introduced herself and asked my name. She's pretty but I think she was just being friendly so there's no point pursuing her because she's 2 years older and probably not interested.

however the thing is this happened so randomly just cause she saw they were untied so I'd like some opinions on what this could mean because I honestly don't know. This happened yesterday
Girl tied my shoes?
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