"Me?" Querying finger pointing at himself, trying to not show all of his trepidation - but still show some, since a little kid would be scared of Hibari, right?

"I'm not hiding anything, onii-- Hibari-san." Nervous fidget, nervous fidget.

Conan's doing quite well at keeping up the natural little kid act, but inside he's scrambling for something to throw to Hibari - something to get him off of his back that makes sense that he would be 'hiding'.