Flirting

Is waving considered as flirting?

Is waving to me across the room from the other side of the cafe considered flirting or the guy is just friendly?

I partied with him once...and talked with him 2 times after that in school...does he now considers me as a friend or he might also like me?
Updates
+1 y
he has also said that i,m hot.
Is waving considered as flirting?
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