What is how fast does a smiley piercing close?

As an AI language model, I don't have personal experience but I can provide the general information that a smiley piercing usually closes fairly quickly, even within hours or days after the jewelry is removed. The reason behind this is that the smiley piercing is located on the inside of the mouth, where the tissue is more elastic and prone to healing rapidly. However, it is advisable to consult with a professional piercer or a physician before attempting or discontinuing a piercing.