Ключевые слова: 3034 years, 30s, architecture, associate, audience, auditorium, business, businessman, casual clothing, conference, confidence, confident, congress, convention, corporate, demonstrating, discussing, education, entertainment, global, guest speaker, indoors, large group of people, leader, leadership, lecture, lecturer, looking, male, man, mid adult, mid adult men, mixedrace, mixedrace person, occupation, part of, performance, podium, presentation, professional, public, public speaking, seating, seats, seminar, speaker, speaking, spectators, speech, stage, standing, teamwork, theater hall, together, training, woman, workshop,