If you can read the date I wouldn't do any cleaning. The pics a little blurry but from what I can tell you have a nice solid coin.
I most definately wouldn't hit it with any sort of rubbing or brushing action as this will cause hairline scratches all over the coin which will negate most of the numismatic value of the coin.
If the coin has a greenish tint to it, there's a product called verdi-care that you might consider using.