Tell me what this girl thinks or what ever shes showing ?

at school, i was putting my stuff into my binder, and these 3 girls, one said you have a pink binder? this girl in particular said, pink is his favourtie color, that same girl that mentioned my fav color...I walked by her and she EXHALED hard as i walked by her...? she moved back into my school, during lunch she was standing with one of her friends, i guess, and i walked by the both of them,, she had no emotion in her face.. the girl that used to like me's friend, said hey hottie to me, still she had no emotion in her face.. after that and i was walking down the hallway at school, we both look into each others eyes for a good second and she looks away first, TWICE she has done that, this morning, she seen me, and she faced a different direction and started running her fingers through her hair, i had a hockey game, i was skating in with the puck and the d hit me, we both fell down and i saw her laughing afterwards.. what does this all mean ?