Anybody know how?

Unless it is a Claddagh ring, I don't think special rules apply. The way that a Claddagh ring is worn on the hand is usually intended to convey the wearer's romantic availability, or lack thereof. Traditionally, if the ring is on the right hand with the heart pointing outward and away from the body, this indicates that the person wearing the ring is not in any serious relationship, and may in fact be single and looking for a relationship. When worn on the right hand but with the heart pointing inward toward the body, this indicates the person wearing the ring is in a relationship, or that "someone has captured their heart". A Claddagh worn on the left hand ring finger, pointing outward away from the body, generally indicates that the wearer is engaged. When the ring is on the left hand ring finger and pointing inward toward the body, it generally means that the person wearing the ring is married.[1] http://en.wikipedia.org/wiki/Claddagh_ring

I don't know what the meaning of it would be, but I would think that you would want to wear it with the point of the heart facing away from you. That way whoever is admiring the ring can view it the way that shows it as the heart not backwards.

I feel that it is basically just a preference thing. When we see our hands we like maybe to see the heart upright so we see it better and not facing away but maybe for others some might have it facing the other way. I would wear mine so that I seen the heart upright when I looked at my hand. I don't know if it has special meaning wore the other way or not.

No idea I just put it whatever way looked the best to me.

Don't quote me on this but I think that if you are with someone you put the butt end (the one end that looks like a butt, or the point where the heart makes a half circle) towards yourself "taken". Maybe something similar to a claudaugh ring? http://www.claddaghring.com/articles.asp?id=122 This is an ARTICLE about proper wearing for a claddaugh ring, I hope that this is helpful!