seminar, coaching, speech, forum, business, training, speaker, group, congress, studying, listeners, study, presentation, male, educator, people, learn, professional, conference, institute, meeting, education, knowledge, academic, lecture, manager, indoors, man, screen, businessman, participants, corporate, sitting, teacher, lecturer, cooperation, event, hall, teaching, audience, room, center, public, university, briefing, information, explaining, convention, gesturing