Henry is very sure that something is happening, but he doesn't understand it at all. He watches things very, very carefully, because he's trying to figure them out. He might study the corner of a pie container, just because it's in his line of sight, and he might wonder why he sat where he did to have that be there like that. Everything is new. It might not be frightening to him, but it could be a key to something. Everything should be looked at. There could be clues in it.