Use ravines, gullies, hills, wooded areas, walls, and other cover to keep the enemy from seeing and firing at you. Avoid open areas, and do not skyline yourself on hilltops and ridges. Concealment does not protect you from enemy fire. Do not think that you are protected from the enemy's fire just because you are concealed. Concealment, like cover, can also be natural or man-made.
Natural concealment includes such things as bushes, grass, trees, and shadows.
If possible, natural concealment should not be disturbed. Man-made concealment must blend into the natural concealment provided by the terrain. Light discipline, noise discipline, movement discipline, and the use of camouflage contribute to concealment. Light discipline is controlling the use of lights at night by such things as not smoking in the open, not walking around with a flashlight on, and not using vehicle headlights. Movement discipline is such things as not moving about fighting positions unless necessary, and not moving on routes that lack cover and concealment.