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