I put the food and water under the bed, and hung out on the floor next to the bed for a bit. After a while, he had some food. No water yet though. He also went out from under the bed and went into my wardrobe for a bit, then retreated under the bed again.
I don't think he's pooped or peed anywhere yet. Can't smell anything, anyway.
I don't really want to put the litterbox in my bedroom area, but I guess it's better than having him poop in the wardrobe or under the bed?? Hmm, maybe I can put it there for a bit, so at least he knows it's here. Then I can try gradually moving it closer to the bathroom.