Hats are a form of apparel that one wears atop their head.
Hats are multifunctional objects, often used when one wishes to draw a slip of paper or other object at random but does not have any other more appropriate object to hand. You may be interested to learn that hats have difficulty containing things whilst right side up. Therefore, in order to use your hat for such an endeavor, you must first OVERTURN it.
Once overturned, you may place items into the hat, then you may DRAW FROM HAT in order to retrieve one item at random.
Once you are done and the hat is empty, you may simply wear it again and find that it is still perfectly suited to its original purpose.