At the register: Look for the Apple Pay symbol at participating merchants when you are ready to pay.Touch – to pay in-store, move your iPhone near a contactless reader. Double click the home button and pay using Touch ID, Face ID or Password. (For iPhones without the center home button, double click the side button)
Pay – a subtle vibration, blue checkmark and tone let you know your payment has been processed.
Done – purchase confirmation will display on the screen.

Apple Watch: To make purchases with your Apple Watch, just double-click the side button and then hold the display of your Apple Watch up to the contactless reader. Confirmation will display on the screen when your purchase is complete.

To pay in apps and on the web with your iPhone, iPad or in Safari: Select the Apple Pay payment option at checkout, review your details, and place your finger on Touch ID. On Mac in Safari®, choose Apple Pay then complete the purchase on your iPhone or Apple Watch.