In order to select what you want to gift to your recipient, you will have to follow these steps:

1. Go to the event page.
2. Click on the Gift Items button. That will open your site inventory in the event page.
3. If you still have to deposit the items, then click on the Deposit Items button. Doing so will redirect you to the normal Site inventory.
   1. Select the items to deposit from your backpack and click on the Deposit button.
   2. Wait until the validation is done. Once it's finished, you will be able to see the items deposited in your site inventory.
4. Once you are done depositing your items you will be able to click on the items that you want to gift, that will move your items to the Selected Items section.
5. You are almost there! The only thing remaining to do is to click on the Submit Gift button and the items shown in the Selected Items section will be set as a gift!