Silver isn’t as simple as just being silver.  It could be a chromatic version, or a shimmer wash, a sheer wash of colour, or a wet-look metal.  Wear it all over your mobile lid for a wow impact of colour, as seen here, created by Ellis Faas using her Lights shadow, or just a flash of colour across the inner half of your lash line.  Add it to a lipstick to give that a hidden inner glow, or...