The operation of lip-syncing and singing on Douyin is as follows:

1. Open Douyin and click the plus icon at the bottom. After entering the page, click Select Music at the top. Select the song you want to lip sync to on the page and use it. Click the capture button, point the camera directly at the person's face and start lip-syncing. Click the drop-down icon on the left and click Auto-subtitles.

2. Open Douyin and click the plus sign, click Select Music, select a song and use it, click the capture button to start lip-syncing, click Auto Subtitles, click Save in the upper right corner, click Next in the lower right corner, Enter your copy and click Publish.

3. Open Douyin and click the plus icon at the bottom. After entering the page, click Select Music at the top. Select the song you want to lip sync to on the page and use it. Click the capture button, point the camera directly at the person's face and start lip-syncing.

Click the drop-down icon on the left and click Auto-subtitles. After automatically generating song subtitles, click Save in the upper right corner. After the video is created, click the Next button in the lower right corner. Enter the title copy of the video and click Publish.

4. Open Douyin, find a video you want to lip-sync to, and click the button in the lower right corner. Click "Shoot the same style" below to shoot a video of the corresponding number of seconds according to your needs. After successful recording, click √ and then click the next option. After editing the content you want to express, click Publish.