Character Positions!

With a given rig, eleven, I had to demonstrate different emotions through positions. At first I couldn't figure out how to change the positions of the individual fingers or things like how to shut the eye lids. The more I played around with the rig the more I got into it. I'd like to explore this more and try animating the eleven rig showing emotions. I think to improve the positions I could slightly exaggerate certain aspects to give more of a feel for it.. for example, the 'frightened' position, I could have had him bent further back, shrink his pupils, make his mouth drop more. 

Frightened.

Hap-hap-Happy.

'Stress sir, it's a killer'

Sleepy.