You don't need to put your first name on your syllabus if you want to make sure students call you by your last name. If you always stay behind the desk and lectern, you will have a greater distance both figuratively and literally than if you spend some time in the front of the desk or walk among the students. Using your hands to beckon forth their comments and questions, nodding and making eye contact with them, and moving often in order to face all your students are ways to connect with them. They generally respond to the body language of the teacher. Despite the progress made over the past decades regarding fair treatment of people regardless of gender, campuses continue to be witness to sexist treatment usually directed toward women.
Disrespect can crop up for other reasons as well.
It is dealt with in a section on bad manners on page 41, which complements this section. Here, some preventive measures are presented. Attending to the following points can help students realize that you are a professional academic and deserve to be treated as one. Don't dress like your students. Wear a jacket or slacks or other clothes that will distinguish you from most of your students.