Who: Peter Pan and Open When: After his bannister sliding Where: Art room... hallway... ending up in the lounge What: Peter Pan finds paste and paint. Need I say more?
Who: Alice and Norman Bates, and anybody else who wants to join in When: After coming down from the rooftop gardens Where: Hallway outside of Alice's room at the start. What: Alice and Norman attempt to search for the Art room
Who: Norman and whoever When: Early evening, the same day as Norman's arrival (at least from his point of view). Maybe he disappeared for a while? Where: The banquet hall What: Having finally ventured back out of his room, Norman goes exploring and finds the food.