Creating An Individualized Training System

I have been carefully observing the different dog owners at the park and the way they use commands and gestures to train their dogs. I am hoping to incorporate some of what I have learned into my own Labrador training system for the puppy.
Some of the trainers I have watched in videos seem absolutely mean like drill sergeants or something.
Puppies are like children. They take effort, time, and a lot of attention in order to teach them to behave appropriately in different situations.
Of course, any training program will have to be fun for both of us to do or neither of us will want to do it. I have found a great new recipe for beef treats I'm going to bake up to use strictly as training rewards.