1. First, open Tik Tok in your mobile phone and click "Me", as shown in the figure below.

2. Then in the opened page, click "Add gender, age, school and other labels", as shown below.

3. In the page that opens, click "School", as shown in the figure below.

4. Then in the page that opens, select a school, or search for the name of a university, as shown in the figure below.

5. Choose departments, admission time, education, etc. You can also set the exhibition range, and then click "Save", so the label will be modified.