Ключевые слова: analyzing, audience, audience participation, auditorium, business, career, communication, conference, conference hall, convention, corporate, crowd, development, digital, discussion, education, event, expo, graph, indoor, infographics, information, innovation, interacting, leadership, learning, lecture, management, marketing, meeting, mobile, networking, note taking, presentation, presentation screen, professional, public speaking, recording, screen, seating, seminar, smartphone, speaker, strategy, technology, training, visual aid, workshop,