Douyin Buyer Show can be set up by following the steps below. First, users need to open the Douyin app and enter their personal homepage. Then, click the "Me" icon in the bottom bar and select the "Settings" option. In the settings page, users need to click the "Buyer Show" option to set it up. In the Buyer Show page, users can select the products to be displayed, edit product information, set the cover, add music, etc. Users can show their products to more people through Douyin Buyer Show to increase sales and exposure.