If you intend to ship to multiple addresses, click "Ship to Multiple Addresses" above your order summary on the right side of the page. Guests must add addresses next to each item. Signed-in customers may choose an address by selecting one from the drop down menu next to each item, or by adding a new one.
When adding a new address, a shipping address form will pop up. Complete all required fields in the shipping address form. If your shipping address will be used for billing later in the process, click the "Use This Address for Billing" checkbox. If you are signed in, you can save the shipping address for future use by clicking the "add to address book" checkbox.
When you are ready to move on to the next step, click "continue".