Yes, you heard me. If your subject has the sunlight on their face, they will be exposed properly but their eyes will be closed. Instead, turn them around with their back to the sun and use the flash on your camera. If you have the camera in auto mode, just click the flash to fill flash and it will do the work for you. The flash will expose the now shadowed face and the sun will light the hair, shoulders, and background.
This can be the light bouncing off the white sand, a white wall, or even a cardboard pizza box. Remember, photography is all about painting with light. So use it as needed.
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