The most fun Kacee has is when we go for long, long walks. I have a 16-foot retractable leash and it gives her the feeling of running free and she really does like to run!
I don't think she would ever come in if I didn't bring her in. She wants to walk forever! She loves to run circles in her fenced yard and will sometimes jump into my arms when she gets to me and I remember Muffin doing that when she was a puppy, too.
Playing fetch. Car rides? Of course!
She just loves attention and someone to play with.