Ключевые слова: audience, auditorium, background, business, chair, classroom, communication, conference, conference hall, congress, convention, corporate, discussion, education, empty, entertainment, entrepreneur, event, furniture, group, hall, indoor, inside, interior, learning, lecture, lecture hall, meeting, modern, no people, nobody, person, presentation, professional, public, room, seat, seminar, show, speaker, speech, stage, strategy, teamwork, theater, theatre, training, workplace, workshop,