Character Emotions

now my character is a skeleton so emotions for a skeleton would technically not exist because your facial expressions is nearly completely done up of your face muscles. However I thought I could still alter the skeleton in such a way it would appear it has emotions.

By simply changing the shape of the eye sockets and moving the jaw around i was able to pull off some emotions. However after a while of trying and failing i was not able to really do any more expressions that didn't really look the same as the 5 I got here.