Brian is starting to gain the ability to pull a few expressions. The recent development is the addition of brow and eyebrow controls.
The brow is controlled with a blend shape and the eyebrows are controlled with a joint system with stretchy IK spline (my favourite:)) I set up a driven key to allow the brow and eyebrow to move up and down together. The eyebrows can also be tweeked into any position as the driven key animation is applied further up the hierachy.
The next stage will be to add more preset brow and eyebrow poses like angry, sad etc. and then start work on the mouth shapes.
(click to see big)