"It was an insance asylum on wheels." pg. 54 This is comparing a bus drive to a asylum without using the word like or as.
this body to...
"I was amazed they didn't get up and walk away on their own." pg. 56 This is being compared to human qualities because pants can't actually walk on their own. They were very stinky so that's why Cap made this comment in the first place.
"... the wind should have knocked him over." pg. 160 This is an exaggeration because the wind wasn't strong enough to knock Cap over.
"I practically jumped out of my skin when I realized that ... his hip." pg. 106 Cap literally didn't jump out of his skin, he was in deep shock.
"My heart turned over in my chest." pg. 187 Cap's heart didn't actually turn over because that's not even true. No one's heart can turn in their body.