Ключевые слова: attention, audience, auditorium, background, briefing, business, businessman, businesswoman, caucasian, center, communication, computer, conference, congress, corporate, discussion, event, female, group, hall, indoor, interior, international, laptop, learn, learning, lecture, lecturer, manager, meeting, modern, new, people, person, presentation, professional, public, room, screen, seat, seminar, speaker, speech, spokesman, spokeswoman, stage, training, woman, work, young,