Ключевые слова: audience, business, businessman, coaching, conference, congress, convention, corporate, course, delegate, discussion, education, entrepreneur, event, explaining, forum, group, hall, head, indoors, institute, knowledge, lecture, listeners, male, manager, meeting, men, participants, people, presentation, professional, public, screen, seminar, silhouette, sitting, speaker, speech, study, teacher, teaching, tech, technology, training, university, woman, workshop, world,