Part of Yale's Addiction Treatment: Clinical Skills for Healthcare Providers course, this session teaches motivational interviewing as a way to work with patients who want to stop using substances but keep struggling to do so. Yale instructors walk through the five guiding principles behind the technique, including expressing empathy and supporting a patient's sense of self-efficacy, and introduce the OARS framework of open-ended questions, affirmations, reflective listening, and summaries. The lesson distinguishes between sustained talk and change talk, showing how a clinician's language choices can shift which one a patient produces. A model conversation performed by actors demonstrates the approach in practice, illustrating how providers, counselors, and peer support workers can use these tools to help patients talk through ambivalence rather than being confronted about it. The lecture treats addiction as a chronic, treatable condition and frames the conversation itself as a clinical skill.