first off, my son rarely takes a photo with a straight face. as soon as he smiles nicely, i snap right away, very quickly, as i possibly can. then of course, he shines with silliness and goes all out with some of the most odd facial expressions. I'm always telling him his face will stay that way if he keeps it up. ha, he of course knows it's not true.
enjoy the rest of your Sunday and happy creating... :)