Even though different technology can do many things, reading emotional expressions using technology can be valuable. It is valuable because this kind of technology can seek if your happy, sad, excited, surprised, etc. Many people don't express their emotions the same way.

This technology we're talking about is called the Facial Acting Coding System and it enables humans emotions. This technology is however valuable because it can clarify how others are feeling even if they're hiding their emotions. It can also let someone know which emotion your showing because sometimes diiferent emotions can be showed with the same facial expression.

When showing expressions, many of your muscles are being used. Computers can recognize the subtle facial movements we humans use to express how we feel by constructing 3-D computer model of the face and the 44 major muscles in the model must move like human muscles. "For example, your frontalis pars lateralis muscle (above your eyes) raises your eyebrows when you're surprised; your orbicularis oris (around your mouth) tightens your lips to show anger." When you show any type of facial expression, your using at least one or more muscles. This is called action