We decided to take Cooper to a dog park today. We couldn't decide whether or not he should be in the big dog portion of the park or not. Ultimately we decided that since he's right on that dividing edge (and there were some really big dogs in there) to take him to the small dog section.
He made a couple friends, one in particular.
He had so much fun that he was falling asleep in the car on the way home. We'll definitely be taking him back as often as we can.