When the dog is elated, it erupts in spontaneous dance. It is dancing with great pleasure and reminds us that this is a sure-fire way to joy. Though in this case the dog is dancing as it is very glad to see human who is recording this cheerful pet. It is a way to express joy and you can see from this video why the dog adores its owner so much. It is loved and pampered, so this is a very happy family for the dog that just enjoys life.