Easy...but only with snakes that have round pupils. Their pupils sink to the "6 o'clock" position (like a sunset, lol) when asleep. Their pupils rise back up to center
when they awaken.I'm very much looking forward to your adventures with her. And yes, a "calm energy" is a good description for a TP. Very typical of them.
You'll also notice they stick their (pink, did you notice?) tongues way out (-or else they have longer tongues? I'm not sure). Too cute, anyway...