Ключевые слова: 3039 years, african, african american, african ethnicity, africanamerican, black, black people, business, businessman, casual, chroma key, closeup, computer monitor, device screen, entrepreneur, executive director, green color, green screen, holding, human hand, male, man, mature adult, middle aged, middleaged man, mobile phone, modern, networking, office, one man only, people, point of view, portable information device, scrolling, smart phone, social media, text messaging,