How does your dog let you know he/she wants to play? The dog I have years ago would sit and stare at me. Not blink just stare. She would then bring me this old rag and something to put in it like one of her bones. She loved me to tied up the rag and put the bone in it. She was amazing and could untie knots with her teeth. She would just lay there and work on it until it was out. Then I would have to repeat. It was fun to watch her.