1. If we want to add the magical expression of a little yellow duck or a big white goose to WeChat, we should first open the WeChat chat interface, click on the expression option in the input field and select the "+" button in the lower left corner.

2. After opening the interface of the emoticon store, use the search button in the upper right corner to find the "Little Yellow Duck or Big White Goose" emoticon package, and then you can add settings.