One of my favorite things about Doggie Daycare is the diversity of personalities in every group I take care of. I don't know how much of the differences can be attributed to breed, upbringing, or just the individual dog's own outlook on their doggie life. I suppose it doesn't really matter; my objective is to make sure everyone has a good time and stay safe.
Some dogs are happy-go-lucky from the start and jump right in to the social scene. Others generally prefer to keep to themselves for a variety of reasons, from nervousness to not wanting to be bothered with tomfoolery that interrupts a good nap in the sun.
Oscar D. (the tan one) is more of a people-dog than a dog-dog. He LOVES to fetch and hang out with the animals of the two-legged variety. Bella P.(the pit bull) generally prefers soaking up the vitamin D while snoozing, not bouncing around with the high-energy pups. So it's nice to see both of them expand their doggie horizons a bit - Oscar accepts another dog as a suitable playmate, Bella gets a little exercise (she's usually the mellowest dog out there).
Anyway, here's some footage of happy dogs playing.