When mine is calm he is sort of more pliable, if that makes sense? If I remove him from his enclosure, he is somewhat lazy, maybe explorative and outstretching his neck and tongue flicking a bit, but generally his body just seems to loosely drape my hands/arms. When he's nervous you can feel his muscles get very tense, and he might be moving very quickly trying to get away. If he's feeling shy he will go into a ball, and if he's really nervous he will go into a very tight ball and not change his position at all, even if I put him back in his enclosure.

When he's agitated in his enclosure, for instance, when the temp went off he was constantly reaching to escape and very active within his cage. When he's hungry he just explores a lot, and seems to pay more attention to me, turning to stare at me and smelling the air a ton with his tongue.