Wireless charging methods are as follows
Plug the charger into the power supply. Use the power adapter that comes with the accessory or the power adapter recommended by the manufacturer.
Place the charger on a horizontal surface or other location suggested by the manufacturer.
Place the iPhone on the charger with the display facing up. For best performance, place the phone in the center of the charger or in the location recommended by the manufacturer.
The iPhone should start charging a few seconds after you put it on the wireless charger.