And this is what I got instead:
That is "the face".
It is Preston's trademark weird mouthy thing that he does. It makes him so incredibly, um, him.
Upon further coaxing from his nagging mother to smile and look at the camera, he did this:
I just heard you go "Awwwwe".
Don't let that cuteness fool you. He wasn't actually sad in that photo. (although he may have been sad about the stye on his eye).
He. Just. Wanted. DOWN.