If you try to decide things about people or characters, then you are doing exactly what I said people do. When I say this, it is never meant to be implied that people try to estimate people exactly(some do). I am saying that people make estimates of other people so they know how to deal with them.
This is instinctual as well as purposeful. Animals even make attempts to determine what another\'s motives are. Animals shy away from anger, take advantage of fear, and embrace affection. There are exceptions to this, but the idea is that animals, including the human animal, react based on their base judgments of others. These judgments can be wrong, skewed, or misled, but they are always made.
You said yourself that decide whether to trust people or not. I ask, if you don\'t trust someone, do you bother to reason why you don\'t trust them? Do you assume it is mistrust based on their intentions or lack of sincerity? I think you\'ll find that you do make these same assumptions I have been talking about. You may label them different than good, evil, lawful, chaotic, but you do make them. Everyone does. If you don\'t trust someone, I am sure you have made a moral judgment about them as well. Being untrustworthy can come from undependability, unpredictability, or immorality. While I might believe that you are unconscious of these judgments, I will never believe that anyone does not make them.
Also you have confused moral belief with good and evil. These do not necessarily go hand in hand. There are three measures of morality: Morality: the tendency to do the moral thing; Immorality: the tendency to do the immoral thing; and Amorality: the absence of morality, good or bad. So what I am saying is that these judgments are made to determine whether we trust a person to do what we feel is correct or not. Our own ideas of right/wrong and good/evil determine how that person is seen by us. This goes back to perception. We perceive, even if we perceive unconsciously.