imported post
if you can see ANY part of the gun, most consider that to be 'open'. However, I tend to prefer methods of carry that expose at least 1/2 of the grip of the gun, OR are very clearly a gun carrying device. My Walther P1 rides in a military leather flap holster, the entire gun is covered by the flap when its buttoned up. HOWEVER, it is NOT concealed, in the same way that carrying a gun in a gun case in your hand is not a concealed gun.
NC does not penalize open carry or 'printing'/carrying concealed badly. HOWEVER, I tend to try do do A or B, as you don't want an OC gun that gets covered by your jacket when you put it on, unless you have a valid CHP. And you don't want a 'hidden' or concealed gun that gets shown off tot he store every time you reach to get your wallet.
I own 1 Serpa holster by Blackhawk, currently selling it. It gives added secure retention on the gun, adjustable cant, and can be used for open carry, or with an untucked shirt, or a jacket, can be a concealed holster. I have 1 gun that was a clip on it to clip into a belt, waistband, or a pocket, it also has a neck lanyard. I however tend to carry it in a heavy leather 'wallet' type holster that makes it fit nicely in a hip pocket. I carry my double stack little gun in a small of back/kidney carry location, in a leather holster that clips tot he belt when riding inside of my pants. I can carry it visible, with it outside my shirt, or cover it with my shirt tucked in and have it be hidden. It and the pocket holster are from
http://www.wildbillsconcealment.com/shop/, a nice shop, though not cheap, that is local here in NC.
For my every day OPEN carry I personally prefer FOBUS paddle type holsters, wither tucked into the waistband or normal belt, or worn on a wide 'pistol' or 'tactical' belt that is looped outside of the belt loops, similar to a tool belt. All of my guns that have a FOBUS holster that fits them ride in one, normally a right hand, friction retention only model, forward 'FBI' cant. You can get these holsters for $20 or so most places, slightly more if you want an adjustable cant model from FOBUS, or if you want a thumb strap or other retention. I also use magazine carriers, and a magazine plus tactical light carrier form the same maker, on identical paddles. This means i can use the paddles with or without a belt, in ANY pants, and since the gun rides high and close to the body, I can cover it up with a jacket in winter weather. The 'FBI' cant means I can carry the gun slightly behind my hip, thus making it comfortable to sit/stand/drive/etc with it in place, and not have to touch the gun in public to adjust its position.
Another things I have found, as a responsible OC person, is that just as important as how you carry your gun is how you carry your ID, credit card, CHP if you have one, business cards with info on open carry, etc. A shirt pocket tends to work well, as if you always keep your wallet and such in your strong side pocket, some Sheeple will get twitchy when you reach down past your gun to get your wallet. We want to educate and be ambassadors, so that those who are still not 100% anti gun see us as the reasonable well behaved ones.