Like everyone else said, it all depends.
Jackson is 12.5lbs and could go all day... he could have 2 hours at the dog park, a 4 mile walk, and still be totally willing to go over to my father's house and run and play with their two dogs for more hours to come. If there's action, he's in on it. However, if we're just home and I'm laying around... he will be lazy with me
