Upon reuniting with Haworth, Percy was simply ecstatic. And though he couldn't put his feelings into words per se, he found a beautiful way of showing what was in his heart.
While out on their traditional morning stroll together, Haworth noticed Percy doing something quite unusual. Rather than explore the sights and smells on their path like he normally does, the dog seemed insistent on fixing his gaze to just one thing as they walked — his best friend's face.
Percy, it seems, could simply not believe his eyes that Haworth was truly on the other end of the leash.