1. This special effect comes from Tik Tok. Open Tik Tok in your phone and click+at the bottom. After opening the shooting interface, click the props function in the lower left corner and click to open the props interface. You can see this special effect at the bottom of the popular props interface. Click on the special effect you want to use. After clicking, we can see that our faces have turned into big cat faces, so we use this special effect prop. We can try to change some expressions. The cat's face will change with our expressions. We also need music for the video, click on the music at the top. Search for the music you want to add in Tik Tok's music library and click it, then click "Use" after the music. After adding music, you can click the record button to start recording the special effects video, and then release it after the recording is completed.