Ключевые слова: audience, auditorium, backdrop, background, blur, blurred, bokeh, bright, business, center, community, concept, conference, convention, copy, copyspace, corporate, crowd, education, effect, event, filter, forum, glowing, group, hall, hotel, join, lecture, light, meeting, modern, office, people, podium, present, presentation, professional, room, screen, seminar, shiny, space, speaker, speech, stage, talk, training,