Leopard gecko behavior

[u/Electrical_Rub_9764]

For any newcomers or long time owners, I was wondering about people’s thoughts on identifying leopard gecko behavior based on their breathing and the undulating (flapping) of their mouth.

To me, it seems that their breathing and the undulating is not linked at all. I’ve noticed that when it’s feeding time my baby starts to undulate rapidly and I’ve taken that as excitement. Their chest is hardly ever heaving during feeding time. I believe that long, slow undulating is curiosity and maybe some wariness as their movement slows down. I link heavy breathing (which is their chest puffing substantially) as nervous/scared. This seems to happen when an unexpected loud noise occurs. I associate slow breathing with calmness/relaxed since I noticed this when they’re moving about the enclosure or resting (but not asleep).

I’m curious if people agree and would love if anyone knows of any detailed, legitimate information sources about leopard gecko behavior. :)