Obama's Best Facial Expressions Translated by Jimmy Fallon

President Obama can be hard to read sometimes, but thanks to Jimmy Fallon, we now know exactly what the leader of the free world is thinking at all times.

Well, not exactly. We'd still like to know what's going through his mind when he has to pose for the same photo over and over and over again, like this:

Still, Fallon decodes quite a few of the President's most memorable faces in the new "Tonight Show" segment, "Obama Expressions," above. Check it.