Girls?? can anyone tell me what this means?

okk i was on the bus going home and i was talking to a friend and i was real wet from the rain. so then i was talking and then i was looking at this girl who was in my skool but was in a different grade she is younger, so then we stared at each other and she was smiling at me and i saw it. so then today i ran into her again in the morning coming out of art cl. i havent said anything because i dont know her. so what does this mean??