I took the picture and Thing2 ended up squinting because of the flash. And after that, she just kept on doing her squinty face. Notice her 4 huge upper teeth and the 2 on the bottom.
Gotta love Thing2's many silly faces.
Thing1 displays her lovely swimsuit. She's been playing with her tongue for the past several days like that. She has the same amount of teeth Thing1 has, but you wouldn't know it since she's always hanging out her tongue!