Ключевые слова: 1819 years, 2024 years, 20s, 3034 years, 30s, african ethnicity, answering, architecture, asking, associate, audience, auditorium, black, business, businessman, casual clothing, communication, conference, confidence, confident, congress, convention, corporate, demonstrating, discussion, doubt, education, entertainment, global, guest speaker, indoors, large group of people, leader, leadership, lecture, lecturer, male, man, mid adult, mid adult men, mixedrace, mixedrace person, occupation, part of, performance, podium, presentation, professional, public, public speaking, query, questioning, raising hands, seating, seats, seminar, speaker, spectators, speech, stage, standing, teamwork, theater hall, together, training, woman, workshop, young adult, young men,