First, please be aware that depending on your country's import laws, your friend may be asked to pay import tax upon delivery -- even if you are sending the package as a gift to them. Please see our page about import duty and tax for more information.
You'll need to add another address to your account in order to ship to your friend. When you're ready, please read through this article about account changes and add a new address to your account in order to ship to them. Please be sure to add your friend's name in the name area, or add their name as a C/O in the first line of the address form to ensure they can receive your package without any problems.
For best results, we recommend using our Private Warehouse handling method so that you can make sure there are no other shipments being processed for you at the same time as your friend's shipment.