Antoine Douaihy M.D. is Professor of Psychiatry and Medicine. He is a recognized expert in motivational interviewing. Joining him is his intern in clinical Psychology, Cassie Boness MS. Vaccine hesitancy threatens nationally needed Covid herd immunity. Motivational interviewing is a very useful approach for enlisting reluctant persons in self-change. Discussed here are the parameters and techniques of motivational interviewing as this applies to Covid-19 vaccine hesitancy.