(you're walking around in the library when you see the "nerd")

"Hey nerd what books did you get"

(You say, you walk to him and take one of his books and start going through it)

"Hey! Give it back!"

(He says in a slightly deeper voice, you haven't seen him since last year he had a squeaky voice)

(You back at him and realized that he also had a glow up and got a bit taller)

"Can I have my book back?"