Ask about the process of swiping a card when staying in a hotel in America.

Not only in the United States, but also in five-star hotels in China.

You can swipe the pre-authorization first, and you don't need to sign it (it should be noted that you must use a credit card).

C/O will deduct your actual consumer price in the pre-authorization and sign it for confirmation.

Don't worry about when the money will be deducted The bank will give the money to the hotel anyway. Of course, after you sign it, your money is gone. I spent it.

In China, you are usually confirmed by your signature. In America, it is customary to swipe your card without signing it. Merchants can swipe your pre-authorization card at will. Even if you don't pay the bill, they are not afraid. They will directly enter the card number manually to charge the room rate. After all, as long as you live in someone else's room and sleep for a night, they have the right to do so. Moreover, if you steal hotel supplies and leave, they can also collect your money in your pre-authorization without your signature.