You can follow someone else's wishlist in the following two ways.
Method 1: Sharing the Wishlist
The owner of the wishlist can share it with you via link, SMS, or QR code. Once you receive the share, you can access the list and follow it by clicking the blue "Follow" button when you're on the shared wishlist.
Method 2: Searching for the Owner of the Wishlist
You can also search for the person who owns the wishlist. Go to 'Friends,' which you can find in the top right corner by clicking the icon with two people.
When you click on the icon, a window will open where you can find a search field under "Friends" to enter the name of the wishlist owner. Once you find their profile, you will be able to see their wishlists.
Note: The owner may have chosen to set their profile to private, which means you won’t be able to access their wish lists unless you are friends on the platform.