Ключевые слова: audience, audio, auditorium, blurred, business, businessman, caucasian, ceremony, classroom, communication, concepts, conference, convention, corporate, education, equipment, event, giving, hall, ideas, igniting, learn, lecture, light, listening, master, media, meeting, mic, microphone, modern, people, performance, person, politics, portrait, presentation, press, professor, public, room, seminar, speaking, speech, success, talk, teacher, technology, university, voice,