Hello,
Thanks for the reply bro but its too late,I already made a move

So here's what happened:
After class,I walked out with my friends and she was at the end of the street standing with 2 girls so I went up to them(my friends were a lil behind me for support

),looked at her and said ''Hi'' with a little smile.She said ''Hi,1 second please'' because she was on phone.Then she turned around and at the same time a friend of mine was coming from the opposite direction and he told me that she had a big smile on her face the moment she turned around.Then some troll guy from our class came with a beer in his hand and said''OHHH I'M SO HIGGHHH'' so the girls creeped out and moved away.I didn't want to follow her so I won't look desperate.I'll hopefully talk to her next time,what should I say ?