Girls, if a girl seems too friendly, does that mean she's not interested?

So there's this girl. Both went to a party after HOCO and really hit it off.(she was my HOCO date) Ever since I met her it just seems that she is overly friendly and I just wanna know if this is a sign of her just not being interested. I just need to know if I should give up now.

Girls, if a girl seems too friendly, does that mean she's not interested?
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