Ключевые слова: academic, adult, audience, auditorium, briefing, business, businessman, center, coaching, conference, congress, convention, cooperation, corporate, discussion, education, entrepreneur, event, executive, explaining, group, hall, holding, information, institute, knowledge, lecture, listeners, male, man, manager, meeting, microphone, people, presentation, professional, public, room, screen, seminar, sitting, speaker, speech, successful, summit, symposium, talk, teaching, training, workshop,