Donna, like I told ya in brumation reptiles can be seen moving around/ or sitting with eyes open, but thats okay. They will sleep as well.
Worry only if they are extremely active, or look as though they are losing weight or sickly.

Chucks in the wild , mostly little/ youngsters can be seen out basking in the winter months on a nice sunny day, for short peroids of time.
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PHEve / Eve