Pretty simple, really: shelves make me purr, Edmund hide, Tenzing deathly curious, and Jeff wish he could sit on the couch and do something else for a while.
Funny to think that I've been waiting three years to get all this figured out, when it seems so obvious now. Shelves, shelves, everywhere. Then, toss in enough furniture to make the room respectable, plus a few tables and some nice lighting, and suddenly you've got a room that isn't ignored, but enjoyed.