The speaker in the video is experiencing symptoms of glossophobia such as a dry mouth, shaking, and difficulty speaking clearly. Some things that stood out about his behavior included stammering, stuttering, quivering voice, shaking arms and legs, and walking around nervously like a caged tiger. Glossophobia is the fear of public speaking, and can cause both physical symptoms like sweating and a rapid heartbeat, as well as psychological symptoms such as a racing mind and fainting due to panic. The document provides tips for overcoming glossophobia, such as deep breathing, standing confidently, making eye contact, smiling, and speaking loudly and clearly.