When I was a little girl, my mom was a Montessori teacher. She has told me about how they taught the preschool kids their left from their right. They would paint an "L" on their left shoe (maybe it was an "R" on the right shoe? Maybe it was the back of their hand? I was 5, cut me some slack!) Anyway, any time a child wanted to know whether that was their right foot or their left, all they had to do is look for that "L", and then they knew that was the left, and the other one was the right. Nice, huh? Well, the CEO at my very small company had his 4 year old at work with him the other day, and she asked him which was her left hand...he told her to hold up her hands in a certain way, and make an "L", and the hand that LOOKED like an "L" was the left hand. Here's a demo. Pretty cool, huh? You know, unless you're dyslexic. Then it might get confusing.
If you don't know about HNT, it stands for Half Naked Thursday, and if you go looking around the web, you'll find a lot of people showing a lot more skin than their hand. Not so much here, so don't ask. ;)