Ключевые слова: app, audience, auditorium, blue, business, businessman, communication, conference, corporate, corporate event, crowd, digital, digital device, education, engagement, event, executive, focus, formal, group, indoor, information, information age, interacting, learning, lecture, lighting, meeting, men, mobile, modern technology, multitasking, networking, note taking, occupational, people, presentation, professional, record, screen, seminar, smartphone, social media, strategic, suit, tech, technology, visibility, workshop,