Traynor Voxel

How do I let friends use objects on my property when I'm not there, or in SL at all? - like play a game, or watch my TV, or... oh, ya that "sex thing" over there?... I've poked around in my profile, the object itself, etc. I'm sure this is simple but I don't get it... Old citizen - freshly returned (feeling rather NOOB-like) Any help would be greatly appreciated.