If you chance to meet a frown

A few days ago David started drawing smily faces. I'd ask him where the smile was and he'd point to the line going over the top of the head. I was confused why he'd put it there but you know, he's 3 and enough said. But today I think I figured out why he draws his smily faces like that! There is a primary song that goes: "If you chance to meet a frown do not let it stay, quickly turn it upside down and smile that frown away." And usually there are little visuals the kids get to hold of a face that frowns with a crease in the forehead, but half way through the song you flip in upside down and it's a smily face. So there's a line on the top and the bottom! Anyway, I just think it is really cute how he does it!