How do you you change your dragons name in How to Train Your Dragon?

In the "How to Train Your Dragon" series, changing a dragon's name isn't a formal mechanic within the games or films. Instead, it often happens through storytelling or personal choice by the characters. For instance, Hiccup names Toothless after their bond grows, and players can rename their dragons in some games by simply choosing a new name from the options provided. Ultimately, it’s about the connection and significance behind the name rather than a specific in-game feature.