At the pool, Evan encounters a Japanese-speaking toddler. They approach each other and stare. A pause. The little Japanese boy looks at Evan and makes a raspberry sound with his mouth. He grins. Evan grins. They stare at each other for a moment. Then Evan makes a raspberry sound, and grins at the other toddler. He grins back, and makes a noisier, sloppier sound. Evan responds in kind, and before I know it, they are exploding with laughter and sloppy fart noises.
The international language of Toddler demonstrated.