You can't see your friends' browsing history on Douyin, it may be because you have turned off the "Work Browsing History" and "Homepage Visitor History". You can turn them on on the Browsing and Visitors page. The specific steps are as follows:

1. Open "Douyin" on the mobile phone desktop, after entering Douyin, click the "Me" option below;

2. After entering the Douyin personal page, click the three horizontal icons in the upper right corner, and click "Settings" in the pop-up options;

3. On the Douyin settings page, click the "Privacy Settings" option, enter the privacy settings page, and click "Browsing and Visitors";

4. After the page jumps, click the button behind "Work Browsing History" to open it;

5. Click the button behind "Homepage Visitor History" to open it.