Jack Personality Type, MBTI

Jack personality type is INFP, the Idealist. That means that he is an introvert, but not one who is cautious or cautious-to-the-point-of-withdrawal. Rather, he is an introvert who prefers his private thoughts and feelings to socializing. While he can sometimes appear shy, he's not so much so as to be withdrawn, and he is very sincere in his beliefs. He is a deep thinker, and while not always able to express himself clearly, he does have a strong sense of inner morality, which he can't help but share with others. He's also not one to hold grudges, but he does have certain standards that he expects of others, and he will sometimes be angry when people don't meet them.