What does it mean when his friends nudge him?

Anonymous
there's this guy I know, and whenever I walk past him his friends nudge him and point to me, then he stares at me. but today I was with my friend and I walked past him and his friend, and his friend was like "is that her? " and pointed to me. he then said yeah, so his friend was like "go go go, quickly before she leaves." What does this mean? or does it mean nothing?
What does it mean when his friends nudge him?
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