Set the blow-dryer to low heat and warm the sticker area.
Peel off the sticker slowly. Don't scratch it with your fingernail or any other object. Let the silver cool completely.
Dip a cotton ball in alcohol and gently rub the sticker area to remove as much residue as possible. Use a back and forth motion rather than circular to prevent tiny scratches.
Spray a cotton ball with the multi-surface cleaner containing vinegar. Gently rub the sticker area to remove any remaining residue.
Remove traces of the alcohol, cleaner and fingerprints. Rinse the sterling silver piece in warm water. Apply a small amount of silver polish to a cellulose sponge and rub it back and forth on the piece. Rinse the piece thoroughly in warm water and dry with a clean cotton towel.