1, the signature should be:

The name is the same as that on the ID card and the style on the application form you signed; You should also use this signature in future consumption.

It is best to sign with a black ballpoint pen. If you sign with a pen, it is easy to wipe off when you encounter hand sweat.

The signature strip (usually 5 cm long) on the back of any credit card signature can on the card.

Better not sign it wrong. Of course, because I used my credit card last year 10, I have never signed a card with the above name in the mall or bookstore as usual. So you should take good care of your card. If someone else takes it and knows the password, others can use your credit card.