Red Eye! This is caused by light from your flash reflecting off the backs of your subjects’ eyes and into the camera. There are several ways of reducing red eye:
2) Increase the angle of light from your flash, either by mounting it off-camera, or simply by moving closer to your subjects.
3) Ask your subjects to turn away from the camera slightly.
4) Use a flash diffuser, or place some tissue over the flash to diffuse the light slightly.