Is the Expression of Emotion a Language?

The expression of emotion is designed to make sure that we co operate and don't kill each other, or even back down. And it's really, really interesting, because we've also evolved the capability to lie and disguise our emotions in order to deceive and have an advantage. That's why i think we've kind of gotten to a point where people are not so sure about things. If you'd remove the ability to lie from human beings, i think we'd have less trouble understanding each other. But it's so evolutionary advantageous to beae. I think if you really pay attention, it's much easier to catch lies as well.