The reading is unlike what you've learned before, at least with the 面 part (白い is just like the vocab word 白い). When you look at the white face of the object you say to your friend Moe: "Oh mo!" (おも) because you want him to come over and look at this. Try to imagine someone you know named Moe, or at least a celebrity or something named Moe.
He is an amusing guy, his only downside is that he gets angry over the smallest things.
This manga is a bit crude but it's very interesting.
Ahahaha! You crack me up, Fugu! That’s the funniest thing I’ve ever heard.