I've never really thought of myself as super small or petite, but I've had this bug me for a while. I have a cousin who is 6'0 feet and he knows that because of his job and compared to him I should be about 5'9 or even 5'10, but I'm dating someone 5'11 and I'm at least 3 inches shorter than him when he stands up straight. I compared my height to other people I noticed I can't tell it the difference that way. So can someone explain it to me, is it possible that you could be 6 feet tall and not look it? Is there a way to measure the height of a person that I just don't know about or something?