Watch the person who uses scare tactics. He’s more afraid than the person who genuinely expresses fear. Sharpen your intellect. This is another and more efficient and effective way to spot them. Better yet, some people get it and most don’t. Or it could be worse. I don’t read minds yet. I don’t know if it’s possible. I detect subtle disturbances in psyche. This is the best I could do. I don’t think it’s any less effective than reading minds. Hell, it might even be just that.