Ключевые слова: abstract, adult, audience, blur, blurred, blurry, bokeh, business, businessman, center, classroom, communication, concept, conference, congress, convention, corporate, crowd, defocused, educate, education, event, exhibition, focus, group, hall, hotel, interior, lecture, light, man, meeting, modern, office, people, person, presentation, professional, public, room, screen, seminar, show, speaker, speech, technology, training, women, work,