His body language and tone suggest a certain level of hesitant fear, much like an animal you might try to study in the woods. That's okay. You're used to easing animals into some level of trust (though the scars on your arms clearly indicate that this hasn't always worked out in your favor), so you smile non-threateningly, carefully keeping your teeth behind your lips. "I don't think I would like livin' in a place like that. I like green stuff." You nod safely to confirm your statement.
Peter drops lower, indicating that he's considering leaving, and you abruptly stop swinging. Instead you lower yourself as well, trying to stay at his level in the trees and failing because, well, they're trees. They're not exactly designed to have boughs at the same elevation. So you stay on your branch, squatting like a frog. "Hullo, Peter!" Your voice is bright and warm as always.
How long were you in the tree? That... Is a good question, given that you have almost no grasp of time. "Uh... I dunno," you admit abashedly, your cheeks dimpling as you laugh. "I was there for the time it took a spider to spin a web. See?" You point at the aforementioned web which extends between two offshoots of the branch above you, a fat and quite self-satisfied spider squarely in the middle of it.