The bottom line for most people who are normal is their need for other people. Even the greedy ones have this need - as long as they're not sociopathic. They may be very misguided and unhappy and do bad things and so forth, but in general if you look down deep, you find that these people are mainly concerned with other people and what other people think of them.

Sociopaths differ fairly dramatically in how their brains react to emotional words. An emotional word is love, hate, anger, mom, death, anything that we associate with an emotional reaction. We are wired to process those words more readily than neutral, nonemotional words. We are very emotional creatures. But sociopaths listen as evenly to emotional words as they do to lamp or book - there's no neurological difference.

When you were a child, where boredom could actually get to be painful. Sociopaths experience that kind of pain in boredom. And so to be alone, to have nobody to play the game with, can be painful. It's not exactly fear, it's a kind of pain.

The most reliable sign, the most universal behavior of unscrupulous people is not directed, as one might imagine, at our fearfulness. It is, perversely, an appeal to our sympathy.

To learn to be charming is fairly easy - you can teach somebody to be charming and to learn human emotions - or to learn the behaviors that go with human emotions. A sociopath, a smart one, will study the way we emote, and will learn how to do that quite effectively.

Being sociopath is not what most people would consider to be winning. Most of us have some kind of positive goal in mind when we think of winning. A sociopath thinks in terms of successfully manipulating someone into doing something that he or she would not have done otherwise. That can be a small thing or a tremendous thing, but the point for the sociopath is to win, to make sure that this person does what they're trying to coerce him or her into doing. It can be as disgusting and as simple as making a child cry. Or it can be as complex as making your wife feel bad about herself.

Sociopaths are not afraid of very much, except for physical harm and dying - really primitive, basic kinds of fears. The problem with being alone for a sociopath is boredom.