1. First, open and log in to WeChat on your mobile phone, and click the "Discover" tab below on the main WeChat interface.

2. Next, on the WeChat discovery page that opens, click the "Mini Program" menu item.

3. In the opened mini program page, click the "Search" button in the upper right corner.

4. Enter the keyword "DIY greeting cards from the heart" in the WeChat applet search box, and then click the "DIY greeting card from the heart" shortcut link in the search results.

5. The page of the greeting card will open. Here you can choose your favorite greeting card template

6. After selecting the template and clicking on it, you can play it in full screen. Click "Use" This template" button, you can enter the page to modify and edit. You can modify pictures, music and widgets, and then save them and send them to your friends.