Using these Tammy sunglasses is easy. Just put them on your face and adjust the temples for a comfortable fit. When not in use, store them in a protective case to avoid scratches. Clean the lenses regularly with a soft, microfiber cloth. Avoid using harsh chemicals or abrasive materials as they can damage the lenses and frames. Also, don't leave them in direct sunlight for long periods as this can cause the frames to warp or the lenses to discolor.