Ключевые слова: academic, audience, briefing, business, businessman, chairs, coaching, competition, conference, congress, convention, corporate, crowd, editorial, education, electronic, entertainment, event, front, fun, game, green, group, hall, information, institute, international, large, lecture, listeners, man, manager, meeting, participants, people, presentation, professional, public, screen, seminar, sitting, speaker, speech, sport, teaching, technology, training, university, watching, workshop,