There's a story to go with this face.
Jessie is a huge fan of Marshmallow Peeps. He is also violently allergic to coconut. Jessie has a very expressive face, so I knew if I played my cards right, I could get something good. Here's how it went:

(Get the camera settings all ready.)
me: Hey, Jessie! Did you hear the news?
Jessie: What?
me: They've changed the formula on Peeps. From now on they will all be made with coconut.
Jessie: (makes the face you see now)
me: *click* Thanks!