It is an effective way to encourage your dog’s positive behavior during training sessions or urging them to continue learning new tricks, quit bad habits, obey commands, and do the right things by adding something quickly after a behavior.
Splitting down into two parts, reinforcement means supporting or prolonging the behavior while positive refers to the addition of something (can be food, treats, toys, gestures, taps, etc.)
For instance, you ask the four-legged to fetch the ball. He fetches it, and you offer him a treat, right after his obedience to your command. The dog starts learning that he is rewarded for fetching the ball. The next time you say, ‘Fetch,’ and your job is done.
Now, that’s the magic of positive reinforcement dog training.