1) Taylor Lautner may be talking about the things that everybody does in school and that everybody as to do. It could be sports, or activies, or classes.
2) a. No, I wasn't. Taylor Lautner was talking about teh fact that he didn't have many friends in school and especially one group of friends to hang out with. He did have some friends from some classes though.
b. The consequence was that he was seen as a social outcast, an outsider.
3) (Je ne peux pas répondre à ta place, mais on te demande qu'est ce que c'est pour toi, la chose normale à faire dans ton collège/lycée).
