What is your thoughts onthis ?
http://socionics.com/advan/prof/intj.htm
[One of your problems is that your facial expressions and demeanour do not always reflect your real feelings. This often leads others to think of you as a cold and distant person. You also tend to loose contact with people that you have made emotional connections with. Another of your problems is an inability to push your talents and make others aware of it. Your often absent self-confidence amplifies the problem. Sometimes you lack determination and do not adapt very well to rapidly changing life situations. This often makes your already difficult life worse. You often need outside stimulation when beginning new projects. ]