It's all about emotion.  Phuckface can be angry, libidinous, and even scared halfway out of its mind.  This made for some tricky modeling.  Rage, fear, and outrageous sensuality all represent highly volatile states of being that require a great deal of effort and sincerity to convey effectively. We thougt it might make our job easier if we experienced some of these emotions ourselves.  So, without further
ado, here we are playing with our faces like pieces of Silly Putty.