My comments in italics.
• While outside, try to keep moving. A moving target is more difficult to hit than one that is standing still.
Just don't move toward the sniper - you'll get larger in his scope.
• If you must remain in one place in an area where you feel vulnerable, select the darkest part of the area to sit or stand in.
This is why I've been sitting in my closet with the lights off.
• When moving outside, walk briskly in a zigzag pattern.
This worked great for our Pacific Fleet during World War II. Make sure your look-outs have coffee and your depth-charges are loaded and armed as well.
• If you must stand outside, try to keep some type of protective cover between yourself and any open areas where a sniper might be located. For example, if you are fueling your car, stand between your vehicle and the gas pump and bend your knees to lower your profile.
Very important: other people are not "protective cover."
Also, don't get hung up on the fact that you look like an idiot crouching while pumping gas.
And, don't tease the sniper by standing in a parking lot going: "SNI-per! SNI-per!" (This is a Simpson's reference: "DARrell! DARell!")
• If you are fired on in an open area, drop to the ground and roll away from where you were standing. Look for the closest protective cover and run toward it in short, zigzag dashes.
This is good advice, unless you want to be a hero and try get the license number of the truck.