when a girl says i am cool guy what does that mean?

That you are a cool guy

A cool individual methods an individual who couldn't care less about other's opinion on his dress, style or style. Thus, When a young lady says you are cool it implies that you have an extraordinary style or mentality which is unique in relation to other people and you even don't mind others' opinion about you.

I was at a party and I was milling around in the crowd, and then suddenly I was face-to-face with this really beautiful girl.  And she said something to me I've never forgotten.  She said "You're standing on my foot."  I never understood it.  What did she mean?