Ключевые слова: abstract, academy, audience, background, banner, blur, blurred, business, businessman, concept, conference, congress, convention, corporate, crowd, education, entrepreneur, event, exhibition, explaining, group, icon, idea, illustration, information, lecture, listeners, man, manager, marketing, meeting, participants, party, people, presentation, professional, public, seminar, sign, sitting, speaker, speech, symposium, talk, team, training, university, workshop,