Keep the subject in focus. It's easy to accidentally focus on your hand instead of the device you're working on.

On many point-and-shoot cameras, you can lock the focus by holding the shutter button halfway down. Set up your shot, lock the focus, and then move your hand into position. To complete the shot, press the shutter button the rest of the way down.

If none of your photo is in focus, it's often due to too much movement from the camera or the device. Remember to use a tripod and delay timer to keep the camera steady, hold your hands still, and try again. Adding plenty of light will also allow for a faster shutter speed, which helps reduce or eliminate blurriness.