Luckily, the answer to these questions is all the same: a shake of his head. Dragons don't speak as Vikings do, and he doesn't know how to talk other than simple body language. Which, before, had been enough. Hiccup has always understood him perfectly. Right now, however, he wishes that he could speak. It would be far more convenient.

Since Julian is so close, Toothless leans forward a little to sniff at his hands and get his scent down to memory. And to check for Hiccup's, but that doesn't seem to be anywhere near here.