Well, now that you have a dragon, (I won't ask too many questions about where you got it) you have to name it! Sure, you can pick ordinary names, such as Sarah, Billy, Samantha, and John, but dragons are majestic creatures worthy of majestic names. Think more about Arisanna, Maximus, Marigold, and Artham. Your dragon is sure to like any of these names. You can even tell how he/she thinks about them using this guide;

Low purring sounds: They are very pleased
Grunt: They are somewhat pleased
Rumble: They are neutral
Growl: They are somewhat unpleased
Snort: They are very unpleased

I hope this noise guide helped!
~Shiloh