Now That He Is Seven. . .

The biggest change I have seen in Guinness at his new age: 
When he sees a dog he knows, he ignores the dog, but says "hello" to the owner. 
When he encounters a new dog, he insists on meeting the dog, but then does not want to play.  He then turns his attention to the owner.  Sometimes, he may demand attention from the owner before introducing himself to the dog.