Schoolboy with surprising happy face. Pupil with a backpack and textbooks. Back to school. kid, school, child, smiling face, Isolate, student, expressive, shocked, knowledge, portrait, schoolkid, positive, fun, caucasian, cheerful, schoolchildren, expression, emotion, happy, schoolboy, face, book, pupil, background, primary, study, boy, childhood, backpack, education, elementary, opened, mouth, clever, emotion, one, white, wow, , surprised, shock, smile