WishLists both public and private allow a way for your customers to flag something they want in your catalog and save it for later.  A public wishlist is much like a gift registry and allows for people to make their wishlist public for friends and families to see and purchase from.

To turn this feature on, go to the Themes menu, select the active theme, in the Theme Settings main page scroll down until you see the setting "Allow Wish Lists". Simply check this checkbox and options will appear on the product page, cart and a wish list area of the myAccount area appears.

Insert image showing wishlist on front end prod page, cart, and myaccount area.
Give the link to the wishlist page in the front end