Select “for someone else” when you have the product in your cart. Once you’ve finished purchasing, go to “My Account” (there’s a link at the top right of every website page). From the left hand menu that appears, choose “Products for Others”. You’ll see the product with one share remaining.
When you click on that Share link you’ll be able to send them the product using their email address. They will get an email letting them know that you’ve shared a product with them. Once they accept your gift they’ll begin to receive specific logistics emails about their access.