Ключевые слова: academic, active, adult, audience, blurry, bokeh, businessperson, coaching, cognition, conference, congress, convention, cooperation, corporate, defocus, defocused, diversity, education, entrepreneurship, event, female, group, indoor, information, institute, learn, lecture, manager, meeting, meeting room, participant, people, person, pitch, positive, presentation, professional, public, seminar, silhouette, speech, study, summit, talk, teaching, training, university, unrecognizable, workshop,