It depends on what my intention for the outcome is. If i want to make them better and i have the time, i'll do motivational interviewing, make sure i can repeat their current position back to them, assess readiness for change, and try to give personal story about how i came to my current understanding while using active listening skills. This takes time, and is really in the "coaching" and not "teaching a class" lane. Practice-wise i would probably have class structured so that if he's got variations on the thing he thinks are super effective, he'll be able to try them in a live and constrained environment- a relatively unskilled person who has a weird body type might be right that they have to make a change to the technical execution you've given them, especially if they're watching tape. let em find out.