I am sending my girlfriend a couple of gifts for her birthday, and was curious how the customs form works. As you may know, you have to list the package's contents and their respective values, which I did. My question is, does this stay on the package when she will receive it, or is it covered up? I ask because it kind of defeats the purpose of sending a gift if so, as its contents are displayed on the outside of the box, along with the value.