Nice guy: Promised his mother he wouldn't jump off the cliff, so doesn't.
Average guy: His mother warned him against jumping off cliff as well, but he doesn't want to look like a chicken to the other guys, especially the sociopath, so he does so even though it terrifies him. Afterwards is proud of his nerve.
Sociopath: Jumps off the cliff several times, since he find it fun. It actually makes his pulse race, a rare experience for him. Feels a visceral hatred for the nice guy who wouldn't jump, and taunts him mercilessly.
Situation: An extraordinarily beautiful woman attends a party.
Nice guy: Admires her from afar; it doesn't even occur to him to approach her, as he knows he could never get a girl like that. Anyway, he's too shy. By the end of the evening, he is in love.
Average guy: Makes a clumsy attempt to talk to her, but tries too hard to be "flirtatious," mistakenly assuming that because she is so beautiful she must be extremely interested in sex herself. Feels foolish and retreats. If any of his buddies ask afterward, says he wasn't really trying to pick her up -- and that she isn't all that good-looking anyway. By the end of the evening he has almost convinced himself of this.
Sociopath: Approaches her, talks to her as if it is a given that she will fall madly in love with him. When she doesn't seem all that interested, tries subtle manipulation on her. When she still doesn't seem interested, propositions her directly. When she says no, he tells her she doesn't realize what she will be missing. When that doesn't work, he tells her he wants to marry her and spend the rest of his life with her. Finally gives up and tells his buddies she's probably a dyke.
Situation: What does a guy tell his buddies after a successful date (where he gets laid)?
Nice guy: "She's a really great girl."
Average guy: Just winks and makes the thumbs up gesture, making the outcome of his date perfectly clear. He figures that by not actually saying it, however, he's being a gentleman.
Sociopath: "That bitch was all over me -- she sucks a mean cock. I swear, every girl I do wants to get all serious. I got no interest, especially this one, she was a complete moron. I mean, she's got good taste and all, but I was shittin' all over her the whole evening and she didn't even realize it."