Ключевые слова: academy, anonymous, attention, audience, auditorium, back view, briefing, business, businesspeople, chair, coaching, conference, congress, convention, corporate, crowd, development, digital, education, entrepreneur, event, faceless, forum, group, hall, horizontal, indoors, lecture, listen, listeners, manager, many, meeting, modern, participant, participants, public, seat, seminar, sit, sitting, speaker, spectator, speech, stage, strategy, symposium, team, training, unrecognizable,