Hi, i am pretty new here and I need an advice.
Today I was in a caffee shop with a friend and there I saw a girl I really like with another girl. I am in the same highschool with this girl and everyime in the brake time when I walk by her I see how she looks at me and sometimes smile, I always smile back. In the coffe shop those two girls went to the batroom and me with my friend went decided to go to the batroom too and when I got out from the bathroom, I was two feet in front of them and out of nowhere they starts laughing loud. Moreover when those two girls decided to leave, I walked among them, to the bar, and out of nowhere the laughing starts again. What does this mean? Were they discusting about me and what? Should I approche her? What open should I use?

any advice is welcomed

Who knows, dude. It obviously is a triggered response and it's something regarding you. The fact that you don't know what it is leads me to believe that it's something embarrassing or negative.

I'd imagine it was a fairly awkward response from you, given you're posting and asking. Your best bet would have been to play it off and say, this cafe food is pretty killer... make a joke out of it. Or push it off, "You heard those noises from the ladies room, too!?"

That's hard to redeem from, though.

I wanted to open them, but after they leave I didnt find them anymore, on the street. Maybe some other time.