Just dog walking today, through the woods, all three dogs. I notice that they all perk up when we reach forestry. They love running through the undergrowth. At one point I saw Byker reaching up, sniffing the air, he had a scent. Other times it's tag - usually Byker hunting down Dixie or maybe Dollar if he fails to keep his distance.
A part of growing up, of developing that pup, is just letting it explore, have fun, be a dog.