Ключевые слова: adults, attendees, audience, auditorium, blue light, business, business dress, business meeting, collaboration, colleagues, communication, community, conference, conference attendees, conference hall, conference room, corporate, corporate event, corporate training, crowd, discussion, diverse, education, engagement, enterprise, event, event hall, focused, formal, group, indoor, information, knowledge, leadership, learning, listening, meeting, men, networking, presentation, professional, professional event, seminar, speaker, strategy, suits, training, woman,