My dog is a 1 Year and 8 months old and he won't entertain himself. If I'm sitting on the floor he will go and chew on his nylabone or play with a rope on his own, but as soon as I sit on the couch, walk away or he is left alone in the room, he stops and sits in a certain spot or sleeps. I know it sounds like he's really well behaved, but it seems OCD to me. And I want him to be able to do enjoyable things when I'm away or in the house doing my own thing. I've tried putting the toys right in front of him or in his mouth but he just puts it down. I've tried praising him if he does start chewing or playing but he immediately stops and looks at me all excited. What can I do to teach him to occupy himself?