Ключевые слова: attendee, audience, auditorium, business, businessman, businesspeople, businesswoman, computer, conference, congress, connected, course, crowd, dark, delegate, developer, diversity, event, global, hall, information, inspiration, international, internet, knowledge, laptop, male, man, meeting, motivation, network, online, people, portrait, presentation, professional, program, seminar, skill, social, software, speaker, speech, summit, talk, tech, technology, training, visitor, workshop,