Ключевые слова: adult, assertiveness, audience, auditorium, background, blur, blurred, board, boardroom, business, businessman, colleagues, communication, computer, concept, conference, confidence, confident, congress, consultant, convention, corporate, digital, display, education, event, executive, interface, internet, laptop, meeting, men, microphone, modern, monitor, people, present, presentation, professional, public, seminar, space, speach, speaker, speech, success, tablet, technology, touchscreen, training,