Ключевые слова: adult, audience, back, briefing, business, businessman, businessmen, businessperson, caucasian, coaching, communication, conference, congress, convention, corporate, debate, equipment, executive, front, gesturing, hall, indoor, indoors, leadership, lecture, listening, loudspeaker, magic, male, man, meeting, mentor, news, people, podium, presentation, professional, public, room, rostrum, seminar, sound, speak, speaker, speech, stage, suit, talk, tribune, voting,