1. Open the Facebook website and log in to your account.

2. In the search box in the upper right corner of the page, enter the name or user name of the friend you want to view, and then press Enter.

3. Find the profile page of the friend you want to view, click the "three points" icon in the lower right corner of the profile page, and select "View Relationship".

4. In the pop-up window, you can view the relationship between friends, including friends of the same family and hobbies of the same family.