Control over your facial expressiveness is a boon. I’ve said it before and I’ll say it again: the ability to let your face show people what you want when you want is worth many, many hours of embarrassing practice in front of your bathroom mirror.
The importance of this skill is demonstrated beautifully by Denver the Yellow Lab in the following video:
[youtube http://www.youtube.com/watch?v=B8ISzf2pryI&w=560&h=315]
It seems Denver needs more time in front of the mirror.
