Very good part there, and impressive to see Snape a bit impressed by Harry and his manners, and nice to see the note that Harry was more ignorant than anything else concerning wizarding customs. Good to see the weay things went with Draco, though have to wonder, is he a true idiot, given that he's been raised pureblood, and still seems to not be able to keep from opening his big mouth, much the same as Ron.