I'm with Possum on this one. I like to point at things in the house, especially critters on hunting shows, gun UNLOADED ALWAYS!!!!!!!! The wife thinks I'm crazy, but she's always impressed when we go shoot and she can't figure out how I can shoot my shotgun so well, but I used to do the same thing with that, but that has become an extension of my arm now, she throws clays for me and this fall I shot a box of 90 clays and didn't miss a one, she loves to see them turn into powder and hang in the air like a little smoke bomb. If you're looking for definition of dry-firing, it's cocking the gun unloaded, and practicing your trigger pull while aiming. When using a rimfire or shotgun make sure you have a dummy round or a spent round in the chamber to absorb the firing pin, I've been told it doesn't hurt centerfires any, but I still have a dummy in there just in case. If you don't have dummy the stress could weaken the firing pin and cause it to break. It's a good way of testing your flinch on the range as well, have a buddy load the gun for you and mix in spent shells, that way you never know if it's loaded and if it's dry fire and you're flinching, it's embarassingly obvious, dad did this to us with the .308 and .243 when we were boys, it worked great, if we flinched, we were done for the day because a flinch can get worse the more you shoot.
Whew, that was a long one, sorry!
Selmer