I've dealt with the Power 19 lately mainly by talking about them. That's all well and good, but just talk is not always the best way to learn. It's like being in a lecture hall and never having a lab practical. I am the type of person who learns well from examples, so I thought I'd provide you guys with one here:
Look how thorough John is in answering each question. Note also that he doesn't spend rhemes of text explaining each nuance. He states his answer and his rationale for each each answer. If you want to see how a good set of answers to the Power 19 might look, read his.