On his first leash walk, the first first first, as soon as he had completed his vaccination, the following was done:

At first we hugged him, like all puppies, and walked to a safe place, away from shelter and barking. There we put him down, along with another puppy. 

He began to walk on the leash as if he had always walked on a leash. He went back and forth, ran, we left him on a very long leash, and we yelled at him on one side and the other on the other, and he ran one by one to the other. 

Then a volunteer who didn't know him showed up, talked to him, Pquito ran to him, stroked, then ran again. 

Then I went to the other puppy we had to play with. Then it didn't reach him and he wanted to walk more. We walked him further. Then he made his chisha! On the leash! First time he walked on a leash and did his chisha!

Then we found a stick, threw it at him, he ran to catch it, caught it, shook it, killed it, then we grabbed one end and he pulled on the other. 

Then he didn't even want to come back. 

These. And this all describes Poquito's personality brilliantly.