Smiling is very easy -- Sora's been doing it all his life, moreso since he learned that people like it when you smile. Curve the mouth, lift the eyes a little, and you're set. Right now, as he's smiling, he's taking similar stock of the situation, though with more attention to structure than personal items.

He raises an eyebrow and starts to circle closer to Kaito.

"Hey, man, you're the one into all that kinky shit. I can only be makin' some wild guesses 'bout what you might be thinkin'."