1. Hold the thumb of the left hand against the ear (the range of the point), and then hold the ear nail with the right hand to make it coincide with the top of the thumb of the left hand. This may take a little time. If you go in (in front), you will pinch your thumb and forefinger at the back, and the wound inside will turn into a "banana" in a short time after you hit it (the deep red hard thing in Cantonese will become hard after rubbing against your skin).
2. If it has been more than a month, it will feel hard when pinched, and it is easy to put your thumb and forefinger on your back (back). You can look in the mirror without the top, but you still have to pinch the back. What we are talking about now is the way to wear the left ear, and the way to wear the right ear is the same as the left and right.