If someone grips your hand then twists his hand so it is on the top,the signal is that of a competitive person who is saying that, although you may be starting out as equals, he or she will win in the end. Most people have been the victim of a handshake where an individual attempts to crush your hand in vice-like grip.This is an indication of a person who is competitive and plans to win at all costs and associates physical strength with acuity.Their bark (or in this case,their handshake)is often much worse than their bite. If someone grips your hand then twists his hand so it is on the top, the signal is that of a competitive person who is saying that, although you may be starting out as equals, he or she will win in the end. Most people have been the victim of a handshake where an individual attempts to crush your hand in vice-like grip. This is an indication of a person who is competitive and plans to win at all costs and associates physical strength with acuity. Their bark (or in this case, their handshake) is often much worse than their bite