Wipe that insincere, two-faced grin off your face -- your computer knows you're full of it. Or at least it will once it gets a load of MIT's research on classifying frustration, delight and facial expressions. By teaching a computer how to differentiate between involuntary smiles of frustration and genuine grins of joy, researchers hope to be able to deconstruct the expression into low-level features. What's the use of a disassembled smile? In addition to helping computers suss out your mood, the team hopes the data can be used to help people with autism learn to more accurately decipher expressions. Find out how MIT is making your computer a better people person than you after the break.