2-3 years, amusement, bare, bare chest, blonde hair, boy, caucasian, challenge, challenging, chest, child, childhood, children, close-up, concentrating, concentration, curiosity, curious, day, daytime, demanding, discovery, entertainment, europe, european, european union, eyeglasses, focus on foreground, focusing, fun, glasses, holding, interest, italian, italy, learning, lively, looking down, nature, playful, playing, preschooler, recreation, rock, sardinia, serious, standing, stintino, summer, sunglasses