Shoot in the shade
When you shoot outdoors in daylight, you might have to contend with a dynamic range — the amount of light and darkness in a photo — that far exceeds what your camera can handle, which produces bright white highlights and deep black shadows in your images. Digital cameras exaggerate the difference between light and shadow, too: If a shadow is partly covering the subject in your photo, the distinction between light and shadow will be as stark as the line formed by the bright and dark portions of a half moon.
To combat the effect, look for alternating patterns of sun and shade. If you see them, recompose the shot to eliminate direct sunlight. If you're shooting at midday, indirect light — such as in the shade — makes for much better pictures. If you can, move your subject under a tree, beside a building, or anywhere you can get away from the harsh sunlight.