Longtime friends.

There are friends to whome being yourself, whoever that may be, will do. Because they know who that person is and will not think it's strange when you may not act or look like that person for a moment. They know it's the moment and not you that changed things. To those people you don't have to be special, because you're already someone special to them, even when you're completely ordinary. Just doing nothing sometimes means even more to them than when you spend all your money on a fancy diner. Those friends are the best, because even when they haven't spoken to you for a month, it'll be just as nice to see each other as it was before. With these kinds of friends there is no awkwardness, nor will there ever be.