Body language can be likened to secret windows of the soul. Since our emotions are intertwined with our behavior, our inner feelings can appear through subtle body movements. Many of these slight changes are so innate, you may not even realize they are happening. Certain emotions like fear, lust, and euphoria can be detected through the manner in which a person moves the body. Many of these expressions are innate and are primal instincts. Much like a baby grasping the finger of his mother, he instinctively is communicating through movement.