One of the keys to taking better photographs is to know how to use natural light. Most of us amateurs make the mistake of using the sun as a lighting source for pictures. People squint with the sun in their faces and their noses cast shadows. The light is too harsh and colors have a burned out appearance.
Use indirect light whenever you can. Sunrise and sunset are the best times to take pictures because the sunlight comes from the side. If it’s a bright day and the sun is overhead, move the group under a dense, shady tree. This is called “open” shade. Here’s a good solution for eliminating red eyes, caused when light bounces from the subject’s retina into the picture. Use a camera with an external flash unit, because when the flash is farther from the lens, eyes don’t turn red.