He pays close attention.

At some point Evan wanders over. "So, this probably sounds pretty weird and kinda gross, doesn't it?"

Headtilt. Shrug 

"Which brings us to our next point: Puberty. You know what that is at all?"

Headshake.

"You ever turned fully into a grown up?"

Nod.

"So you've noticed some differences?"

"...they're taller and have more hair?"

"Also, boobs."

Nod.

"Those are for feeding babies by the way, but there's alternatives to that."

Headtilt.

"You boys have it easy, let me tell ya."

Shrug.

"So puberty is when your body and mind start going from child to adult."

Nodnod.

"From what we've seen, it's a bit rough. Your emotions go all wonky, you start wanting to...mate with everything, it's a mess."

Frown.

"Don't worry, it's a few years away for us."

Sigh. Nod.

"It's not as scary as it sounds."

Disbelieving eyebrow raise.

"It settles down eventually. You've been Zaneta. You can't have not noticed that crush she has on the mayor."

He makes a face.