Ключевые слова: 20s, 30s, black, blond hair, casual, caucasian, cellphone, communication, connection, dancing, dialing, female, focus shot, friendship, gray, happy, holding, leisure, lifestyle, long hair, male, man, mid adult, mixedrace, mobile phone, performance, phone, popular music concert, rock music, rock musician, skill, smartphone, smiling, standing, text message, text messaging, texting, together, touching, typing, using, wall, wireless, wireless technology, woman, young adult,