When you're in town, wearing some kind of uniform is helpful. Policeman, priest, etc. Driving a tank is very impressive; or a car, with official lettering on the side. If that isn't to your taste, you could join the revolution, wear an armband, carry a homemade flag, tie it to a broom handle or a placard, bearing an incendiary slogan. At the very least, you should wear a suit, carry a briefcase and a cell phone. Or, a team jacket, a baseball cap and a cell phone. If you're in the woods - the back country, someplace far from any human habitation, it is a good idea to wear orange and carry a gun, or depending on the season, a fishing pole, or a camera with a big lense. Otherwise, it might appear that you don't know what you're doing, that you're just wandering the Earth, no particular reason for being here. No particular place to go.