Delivery is key. Preparation is key. Have a good first impression they're important. 

Students need to feel that your teaching is valuable and that they will gain something by paying attention in class. You acheive that by caring and coming to class prepared. 

Coming prepared is extremely important. Show students you care by being profesional and prompt.

The most valuable point I took from this was that instructors must model behaviors that enables students to succeed. Whether thats being on time, coming to class prepared, and showing your students that you care about them.