When a customer creates a Wish List, they can optionally set it to be publicly viewable. If a Wish List is set to be publicly viewable, then a Public Access Code will be generated for it.
The customer can then provide their Wish List's Public Access Code to their friends and relatives, who may visit the storefront and enter the access code to view the products on that customer's Wish List.
Public Access Codes look something like this: 04547b463d4c1391a7427f505ffe4985
They can be entered on the Wish List page of a store, which is usually something like:
http://www.my-store.com/wish_list/
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