Ключевые слова: 4044 years, 40s, architecture, associate, audience, auditorium, business, businessman, caucasian, caucasian ethnicity, communication, conference, confidence, confident, congress, connection, convention, corporate, demonstrating, digital tablet, discussing, education, entertainment, global, global communication, guest speaker, indoors, interacting, large group of people, leader, leadership, lecture, lecturer, looking, male, man, mature adult, mature men, meeting, occupation, part of, performance, podium, presentation, professional, public, public speaking, seating, seats, seminar, smiling, speaker, speaking, spectators, speech, stage, standing, suit, tablet computer, teamwork, theater hall, together, touchscreen, training, wireless technology, woman, workshop,