When Kenny runs after the girl who "got back", he runs to the left and off-screen. After Will tries to convince Carlton to comfort Ashley...Carlton decides to also run after the girl who "got back"...except Carlton runs to the right.
The two girls who get "judged" later walk through the hall again going the same direction as before.
When the female pushes carlton into the lockers you can see them all wobble showing that it is a prop,,
Carlton's scream after seeing Ashley with a group of boys.
When the female pushes carlton into the lockers you can see the shadow of the boom mic.