We heard a small child crying from across the car park in our complex.
Luke: Why is the baby crying?
Me: I don't know. Maybe he's angry. Or maybe he's sad. He might be hungry, or tired. Babies cry when they're angry, sad, hungry or tired. Just like Lukie. Just like Mama.
Him, after a thoughtful pause: He's hungry for juice.
Me: Maybe his mama gave him some. He's not crying anymore.
Him, after another thoughtful pause: He wants a nap.
Me: Maybe. [Pause] Do you like this song? Isn't it great?
Him: [Pausing to pay attention, eyes widening and a slow smile spreading across his face] YES!