Try not to sign on behalf of the cashier. If you meet a serious cashier one day, you won't be allowed to swipe your card if it's not my handwriting. In addition, like Guangfa Credit Card, there is no transaction password at all, and it may be troublesome to buy things purely by signature. In addition, if you go to Gome Yongle Electric Store in stages, these will be strictly examined, so you can sign it without signing it, rather than waiting for it. In a word, you may be in trouble. So let me sign it. I hope I can help you.