"Ummmm - No, I don't want to touch him."
"Well, if you think it's safe..."
"This little one looks safer"
"Ooooh! Nice penguin! Okay, I like him."
Funnily enough, he just ran around every other exhibit but we had to actually pull him away from petting the penguin statue. Once he figured out that it wasn't going to jump up and bite him, of course.