A PERSON'S GAZE has weight, resistance, muscularity. Clearly, there are people who use their eyes well. You know them: the sales rep, the fundraiser, the tyrannical supervisor. Their eyes force the question. These people may be as dumb as streetlamps, but they are an undeniable presence in the room. They know they must be dealt with. You know it, too.Establishing and maintaining eye contact is hard for most people. Nervous foot tapping can be ceased, nail-biting stopped, tightly folded arms can be loosened, but eye contact? It's either there or not there. And when it's not there, it usually points to a "problem".
More here. Read it to get rich, get laid or even just to avoid work. (Link to SmartMoney)