Your sister tells you all about your new baby. You tell her all about your new kittens.
The only time you close a door is when you're showering, so the kitties are never locked out of a room.
You plan meals around rather or not your cat will want the leftovers.
You can go days without seeing or speaking to another human being, but you ask your cat's opinion on everything from what to eat to what to wear that day, and tell them what you're doing every time you get up to go into another room.