Ключевые слова: adult, assertiveness, audience, auditorium, background, band, blur, blurred, board, boardroom, business, businessman, colleagues, communication, concept, conference, confidence, confident, congress, consultant, convention, corporate, crowd, education, event, executive, happy, leadership, lecture, meeting, men, mic, microphone, modern, motivation, orator, people, person, pointing, present, presentation, professional, projector, public, room, seminar, space, speach, speaker, speech, stage, success, talk, training, university, white, workshop,