Ключевые слова: adolescence, african ethnicity, bonding, brazil ethnicity, casual clothing, city life, city stairs, ethnicity, fashionable, four people, friendship, generation z, group, happiness, horizontal, leisure activity, men, millennial generation, mixed race person, mobile phone, outdoors, portable information device, positive emotion, smart phone, smiling, social gathering, sunglasses, sunlight, sunset, technology, togetherness, using phone, wireless technology, woman, young adult, youth culture,