Just insert their name, address and email while ordering.
Since you used the word "friends", keep in mind all our products are licensed for a single person only. If you want to do a gift to more than a friend, you must do a separate purchase for each person.
And, the "Volume Discount" option which is available during the purchase, is NOT meant to buy many copies and share them with a group of people, but it's only for a single person running multiple PCs, like home cockpit builders.