Ключевые слова: academic, adult, african, afro, break, cell, class, classroom, coffee break, college, desk, doctor, fun, funny, group, groupmates, happy, having fun, indoors, internship, joy, man, medic, medical, medicine, mobile, modern, multi ethnic, multi ethnicity, office, people, phone, photographing, school, scientific, selfie, sitting, smartphone, smile, social, students, team, uniform, university, young,