HTC One M9 User Manual page 273

4. Confirm the payment card details and tap Save.
5. Read the payment card terms and conditions, and tap Accept.
6. To add another card, tap
Paying with Android Pay
Before you use Android Pay, make sure that NFC is enabled. Go to Settings,
tap More > NFC, and check if NFC is on.
1. When you're ready to pay for your goods or services, unlock HTC One M9.
2. Place HTC One M9 next to the payment terminal.
You'll hear a beep when the transaction is successful.
and follow the onscreen instructions.
Google Search and apps 273