Ключевые слова: casual, cell, cellphone, cellular, cheerful, city, device, earphones, electronic, enjoying, hand, happy, headphones, headset, hearing, holding, internet, laughing, lifestyle, listening, man, media, mobile, modern, mp3, music, online, outdoor, outside, pensive, phone, sharing, smart, smartphone, smiling, social, software, song, street, student, technology, town, urban, using, walking, young, youth,