If you’re like most people, you probably enter your credit card number on the keypad of the machine rather than writing it down. But what if you lose your card or it’s stolen? Here’s how to enter your credit card number on a machine:

  1. Look for a keypad with numbers on it.
  2. Enter the four digits of your credit card number and press “enter.”
  3. If prompted, enter the three digits of your security code and press “enter.”
  4. If you have a PIN, enter it now and press “enter.” ..