1. Click the clip icon. In Tik Tok's video editing interface, click the clip icon on the upper right to enter the clip interface.

2. Click the left side of the thumbnail. In the editing interface, press and hold the left side of the thumbnail bar at the bottom of the video, and then drag to the right.

3. Click on the small hook and drag it successfully. Click the small hook button at the bottom to return to the editing interface.