Want to sign. When handling business at the counter of the Postal Savings Bank, it is generally necessary to sign for confirmation. Signature is a way to confirm customer identity and business operation, and it is also an important means for banks to protect customers' rights and interests. When handling business, customers need to sign relevant documents or electronic screens to confirm their identity and business operations. If it is not convenient for customers to sign, they can also use fingerprints or other authentication methods to confirm.