The pictures below show him running and playing and having a good time, but he's also very affectionate and snuggly with people: he likes to "hug" greyhound-style, that is, leaning up against your legs and gazing up at you adoringly. (In fact, it was difficult to make him WANT to run and play... he was much more interested in what I was doing with my camera, and whether I would pet him if he asked nicely.
Although there are no pictures to show it, in addition to playing in the yard with him last weekend, I took him to a Meet and Greet this weekend, and got to spend two lovely hours with him. He handled his "public appearance" beautifully - he got along well with both adults and kids, giving kisses, leaning on legs, and wagging his tail in greeting. He was a little overwhelmed at the noise and bustle, but did very well in coping with it, just seeming to be a little bit uncertain from time to time when he saw something new.