1. Open the Billie Billie application and log in to your account.
2. Find the Dynamic option in the bottom navigation bar and click it.
3. On the dynamic page, you will see the latest dynamic news released by the users you care about. Scroll down to browse more historical trends.
4. If you want to view the history of a specific user, you can enter the user name in the search field and click the search button. Then click the user's avatar to enter the user's homepage, find the "dynamic" option in the user's homepage, and click it to view the user's historical dynamics.
Through the above steps, you should be able to easily view historical trends on the App.