Ключевые слова: adult, audience, briefing, business, businessman, businessmen, businessperson, businesswoman, caucasian, coaching, communication, conference, congress, convention, corporate, coworkers, debate, explaining, front, gesture, girl, hall, hands, indoors, job, leadership, lecture, listening, loudspeaker, man, meeting, mentor, news, office, people, presentation, professional, public, room, rostrum, seminar, sound, speak, speaker, speech, stage, suit, team, tribune, women,