Knowing that it's not enough to be an expert or knowledgeable in the subject matter but being able to engage the students on a personal level and to be motivated and excited in the presentation is equally important.

Variety is the best way to keep students engaged due to the fact that students, especially adults, have a remarkably short attention span.

That student retention has just as much to do with the instructor's enthusiasm for the subject as the student's willingness and excitement about the material being taught.

Students must be knowledgeable about intrinsic and extrinsic motivation because both are needed. There are points in life where you may only have one or the other.

Trust is the major key in building a relationship with your students.

You need to know your student's as an individual and know their needs as that individual. You cannot categorize them.

Motivating with things is useful to a point. Too much can have a negative effect. You only want to use extrinsic until their motivation becomes intrinsic. Becoming a sense of security. 

Continence is key. For the student and the teacher. Confidence breeds security and a willingness to be proactive in class (i.e. autonomy).

The difference between semantic memory and episodic memory stood out to me. Bringing the two together is definitely the best way to help students retain information. If you can combine your own episodic memory with theirs, it could increase their respect and understanding of why you are teaching them.

I have learned that it is crucial to refocus the class. Not just midway through the course, but continually. Adult attention span is said to be 10 to 15 minutes. This doesn't take into account that most of these people have already put in an 8 to 10 hour day of hard physical and mental work. If you don't keep it exciting, they will check out mentally and start worrying about what their family or friends are doing or what they need to do at work on their next shift.