Ключевые слова: angry, business, businessman, caucasian, computer, concentrated, device, digital, elder, expert, formal, frown, frowning, glasses, grey, hair, holding, indoors, lecturer, looking, male, man, mature, old, person, plan, portrait, preparing, presentation, senior, serious, shirt, single, sitting, speaker, strategy, studying, tablet, touching, touchscreen, using, wearing, working, worried, wrinkly,