OC is OK
You can open carry in a non-threatening way (in holster not in your hand) anywhere not otherwise prohibited (school, courthouse, federal property). "Prohibited" includes private property posted by the owner BUT unlike other states, under this circumstance it is only a crime if you are...
Should Not Shoot within 500 of a dwelling house
I noticed the prior posts and, while as a practical matter it depends upon whether anyone actually complains (make friends with neighbors), you technically cannot shoot within 500' of a dwelling.
§20-2-58. Shooting across road or near building...