YiPay can be used to buy things. The purchase method is as follows:

1. First, open the YiPay client on your mobile phone.

2. Then on the Yi payment page, select "Shopping" at the bottom of the page as pointed by the red arrow in the picture below.

3. Next, select what you want to buy and click "Buy Now" where the arrow points.

4. On the order confirmation page, enter your shipping address, etc., click "Submit Order", and then make payment.