When signing, the customer should ensure that the signature is consistent with the signature on the card he holds. This helps to protect customers from fraudulent or unauthorized transactions. In addition, customers should also sign their own names, not other people's names or irrelevant strokes.

When signing, customers should use pens or other tools on POS machines instead of using their own fingers. Using a pen can ensure that the signature is clear, readable and unambiguous. When signing, please make sure to use clear and readable letters so that merchants and payment processing centers can easily identify your signature.