Our Black Dog was so intense as a young dog. His breeder said that he had the least intensity of any pups in his litter. We frequently joked that it must have been quite a litter to have in your house.
His intensity manifested in a lot of ways. One of the most frequent was in barking when he was excited. He barked and leaped in the air at the start of almost every morning run that he and the Runner did. He barked before his meals. He barked before all training, including the exercises that he and I did together. One neighbor who lived more than a mile away said that she knew when R and I were just about to do his "crawl under the chairs" exercise because she could hear his joyful barks. She said it with a smile.
He also loved to vocalize when I was taking his photo. It may have been him who taught Shyla to howl for the camera.