Students speak of professors who have little eye contact with the class - a distraction to them. Improvement - which only comes after feedback and analysis by the teacher combined. Be aware of your delivery by getting feedback from peers or the Center for Teaching. Be well prepared so that you do not have to resort to notes constantly. Remember - the classroom is a stage.
Effective delivery requires mental, emotional, and physical preparation immediately before class.
Above all have an enthusiastic, optimistic attitude characteristics of a good delivery style. The Center for Teaching, Manhattan College, Riverdale, NY Br.