Man's expression is more indicative of his nature and character than his form or features. In the Qur'an it is said that man's eyes and gestures will confess what he tries to hide in his heart. The strength, the weakness, the power, the fear, the happiness, the joy, the uneasiness, the praise or blame, the love or hatred -- all these are shown by the expression. The more capable one becomes of reading the expression, the more clearly one can read character.