Ключевые слова: attendees, audience, auditorium, back view, blue, business, business event, career, collaboration, communication, conference, convention, corporate, corporate event, crowd, development, discussion, education, engagement, event, focus, forum, group, hall, indoor, information, knowledge, leadership, learning, lecture, lighting, listening, management, meeting, networking, participants, people, presentation, professionals, seminar, sitting, speaker, spectators, stage, strategy, success, team, training, workshop,