Just a kind of general question rather than a technical query. In play, in 1st person view, I frequently see my character go through idles like crossing arms, touching hair, etc. But in 3rd person view she just stands like a dummy, unmoving. I find it weird the idles don't show in 3rd person. Now: I honestly cannot recall if the vanilla Skyrim has these 1st person idles, or if they may be an introduction by a mod like: UNPB Body & No-Maam, CBBE, a skeleton, FNIS, or New Animations, (or similar).
So the point of my question is: does Vanilla Skyrim have idles? And am I seeing them? Or is this an introduction by a mod? And if it is would anyone know which it is? And more generally, advice on fixing it to seeing them in third person would be handy. I'm pretty solid with handling and using mods but this is more like a "Do'h" question than a technical query and a pointer would by handy. It might help others with a similar question, too.
Elderly & confused,
PS - many thanks to the great mod contributions from folks here!