About a year and a half ago, I had the opportunity to see something from a different perspective. Having done several degrees in Psychology, I understood the concept of positive reinforcement and all of B.F. Skinner’s work. In a very simple way I understood it as such (feel free to skip to the next paragraph if you don’t want to relive intro psych):
Positive reinforcement is about increasing the likelihood of a behaviour by providing a rewarding stimulus. So for example, if I want my dog Jett to sit in the future, I will reward her sitting now with a treat. That should reinforce sitting and increase the likelihood that she will sit in the future.