1. First open the Douyin software on your mobile phone, enter the homepage, and then click the "Add" icon at the bottom of the interface. After clicking the "Add" icon, click the red button at the bottom of the interface to record a video.

2. After recording the video, click the "check mark" in the lower right corner of the interface. Then click "Check" to enter the editing interface, where you can edit the video according to your own needs. After successful editing, click "Next" in the lower right corner.

5. After finally clicking "Next", a new interface will appear. Click on the hashtag topic. Enter the tag and finally click "Publish" in the lower right corner of the interface.