How does Lisa McMann use imagery in Wake?

Imagery:

"You shake, you spasm, your eyes roll back in your head"

“That was the goth stage, where I decided I'd never get the girl of my dreams because of my scars. Not to mention my hairstyle. (pause) But then she slammed a door handle into my gut. And when a girl does that to a boy, it means she likes him.”

“Carrie doesn't seem to talk about anything with sharp edges. Maybe she's afraid they might poke her and then she'd burst.”