One approach I have had success with is to begin the class by introducing myself and talking a little bit about my own experience in relation to the course offered. This builds trust with the students that they are, in fact, learning from a professional in their field of study. Next, I ask them what their experiences have been so I learn where to set the class learning objectives, and we assess their initial comfort levels with the course on a scale of 1-10. Then we examine the syllabus together and I ask them to re-evaluate their comfort levels, which opens up discussion to address any concerns they may still have before we get started.