Ключевые слова: 20s, academic, adult, american, background, beautiful, campus, casual, caucasian, cellphone, cheerful, city, college, communication, copyspace, cute, education, friends, happiness, happy, headphones, holding, horizontal, lifestyle, lying down, male, man, message, messaging, mobile, outdoor, outdoors, people, person, phone, portrait, pretty, reading, school, sitting, student, studying, technology, teenager, text, texting, university, wireless, young,