The sweetness, the niceness, the good-natured-ness of a puppy

What words could describe the sweetness, the niceness, the good-natured-ness of this puppy?

Whenever he sees me, he looks at me and wags his little tail. Whenever I'm sitting on a couch, he immediately jumps on it and lies on my lap, where sometimes he asks me to pet him or he simply falls asleep.

This little puppy has got to be the most social little creature on the planet. He just doesn't like being alone. He loves company--my company.

And he can't get enough of it. Anybody who's ever been heart-broken, jilted or rejected, should try Puppy Love. It is the cure for all the ills of the heart.