1. This special effect is in Douyin. Open Douyin on your phone and click the + at the bottom. After opening the shooting interface, click the prop function in the lower left corner and click to open the prop interface. You can see this special effect under the hot part of the props interface. Click on the special effect you want to use. After clicking, you can see that our face turns into a big cat face, thus using this special effect prop. We can try to change some expressions, and the cat's face will also change with our expressions. We also need to soundtrack the video, click on the top to select music. Search for the music you want to add in Douyin's music library and click it, then click Use next to the music. After adding the music, you can click the record button to start recording the special effects video, and publish it after recording.