Is calling a girl “cool” a platonic or flirty compliment?

My friend brought me as a plus one to a party where I barely knew anyone and I ended up losing her for a bit. I bumped into a guy I’m friends with but not particularly close to. I told him I was glad to see a familiar face and his response to this was to go around introducing me to everyone. When he would introduce me, he’d tell people that I was “the coolest” or “the best”. I found this to be a pretty generic, platonic complement but when I found my friend again and jokingly told her about it, she said that she thinks he likes me. That’s a bit of a big jump in my opinion but I do find him cute and wouldn’t mind if she was right. Do you think he was just being friendly or is there more to it?

Is calling a girl “cool” a platonic or flirty compliment?
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