@great-big-stees saidYes, bet he is, but he always reminds them to scrub up for the final viewing and wear something that matches the sofas and blinds.
I think, since it always seems to take soooo long for the "homes" to be built, that he is just memorizing what they are wearing on that particular day and seeing if that same outfit is repeated on another of his visits. Well, that could be why.