To give another deviant a direct link to this FAQ answer, use the following code in your comment or forum post:
I wish to purchase a Gift Premium Membership for another member, what should I know?
Making Your Purchase
There is two different methods which will result in a successful Gift Premium Membership purchase:
1.) By visiting the profile of the user you wish to give a Premium Membership, once there proceed by clicking on the "Give" button, followed by the link 'Give Premium Membership', located on the top right. Finish up by following the steps on screen.
2.) By clicking on Services, (located at the bottom of main deviantART pages) followed by the 'Gift Premium Membership' tab. Once you have clicked the tab, simply enter the name of the member you wish to give a Premium Membership to and proceed by following the steps on screen.
When purchasing a Premium Membership for another member you will be sent a confirmation email letting you know the Premium Membership has been activated. The recipient will receive a similar email informing them of the Premium Membership, the time it is for as well as the name of the member who gave them the gift Premium Membership.
Note: You must have an up to date email address to receive confirmations. We cannot re-send confirmation emails since they're auto generated by the server at the time of purchase. The purchaser however can view and print out at anytime a detailed record of their order history by following the steps in FAQ #27:How do I locate my order history?