Ключевые слова: academic, adult, audience, briefing, business, businessman, center, coach, coaching, conference, congress, convention, corporate, discussion, education, entrepreneurship, event, explaining, group, information, knowledge, lecture, male, man, manager, meeting, microphone, people, podium, presentation, professional, public, room, seminar, sitting, speaker, speech, study, talk, teach, teacher, teaching, training, university, video, water, workshop,