10 Seconds

A young man in a black shirt stands in a classroom as another boy in a grey hoodie places his hands on the first boy's shoulders, then the scene cuts to a blurry close-up of hands, followed by a boy in a yellow shirt wearing a cardboard box on his head and making a karate chop motion in a room with bookshelves, then a close-up of a boy's face in profile, then a boy sitting on a brick path outdoors playing an acoustic guitar and singing with his head tilted back, and finally a boy in a light blue shirt with a white towel draped over his head and shoulders, viewed from behind, in a classroom set