I don't think they wait by the door, but they do come to the door when they hear the key in the lock. Some times the two babies, Gigi and Bixby will come to the door but sometimes they just look up from where they are sleeping when you come in, then get down and come see you. It's almost like they want to make sure it's who they want to see before they get up from their comfy spot. However, my biggest baby fraidy cat when I first got him, Scout, will always come to the door when he hears the key in the lock. I watched him do just that when Joey came over. Scout made a mad dash to the door to see who it was then went back to his spot on the sofa next to me. I thought it was cute. And, after a long day, there's nothing nicer than coming home to 3 welcoming kitties.