[Oh he's absolutely getting headpatted now. After getting his glasses back, he leans forward enough to put them back on...and receive the headpat.]

Haha... What a cheeky little thing you are. Please don't do that again though, okay? It's poor manners to tease someone who just helped you.

[In all honesty, he has no idea why he's given this duck so much of his time in the first place. When was the last time he did something like that? What is this place doing to him?]