1.
Usually said when called up to the board to do the math problem he definitely knows the answer to.
2.
Performed whenever something good happened. Like pizza day in the cafeteria.
3.
Said while gelling one's hair and looking in the mirror.
6.
Said in reference to anything he liked a lot. Or just a little.
7.
Hopefully never done in public.
8.
Whenever a girl made fun of him or his mom told him to clean up his room.
10.
Said two seconds before recess.
12.
The face of annoyance.
13.
The face of flirting.
14.
Said apropos of nothing.