1. First, open the WeChat group, click the plus sign in the input box, select the "photo" or "photo album" option, and select a picture of mooncake to send.
2. Secondly, enter the moon cake text in the input box, such as "Happy Mid-Autumn Festival to everyone" and click the "Send" button.
3. finally, enter the emoticons associated with mooncakes in the input box, such as "mooncake", "Mid-Autumn Festival" and "reunion", and click the "Send" button.