1. First, click Tik Tok on the mobile phone desktop.

2. Then click the plus key at the bottom of the screen.

3. Then click on the props at the bottom left of the screen.

4. Then click Thin in the lower right corner of the screen.

5. Then choose the slimming effect we want.

6. Then click the shoot button on the screen.

7. Then click Next.

8. Click Publish.