1. Open the Tik Tok application, click the+icon in the bottom menu bar, and then select the "Shoot" or "Upload" button.
2. In the video editing interface, click the "Special Effects" icon in the lower left corner to enter the special effects library.
3. In the special effects library, search for "Ye Zi Hal", find the corresponding special effects, and click "Add".
4. After successful addition, you can click the "Preview" button to see the effect. If you are satisfied, please click OK to publish. According to the inquiries of Tik Tok and official website.