There are many ways to clean the glue left by the sticker. We can wipe it with a rag dipped in some alcohol and rub it for a few times to clean it. It can also be wiped with acetone, which is more useful and effective than alcohol. You can also use nail polish remover, which is also effective. Nail polish remover does not require good quality or is generally acceptable. You can also use hand cream. Tear off the silver product on the surface first, then squeeze some hand cream on it and rub it slowly with your thumb, and then you can wipe off the sticky residual glue in a short time.