Recently, I had a thought and realized that there just isn't enough clarification on the matter. At least not that I've been able to find.
We know that assuming NPC reactions is considered Cheesing, Meta-gaming or simply rule-breaking.
This is for instance why we are unable to PvP in front of NPCs without DM oversight.
Or why we can't break into factions with NPCs without the same. So I got thinking.
NPCs can react to you when your OCR is high enough, for whatever reason.
Be you a criminal or a race that has high OCR. So let me paint the following scenario:
Your character for some visual reason has high OCR, however, this OCR can be lowered with the right kind of equipment or magic to be within acceptable levels.
However, you can not hide what you are because of horns, tails, being a half-orc or anything of the kind. On a mechanical level, the NPCs are no longer reacting to you.
So in this scenario, let us assume Port-Au-Lucine, could a Gendarme still ask you to leave because you are 'frightening the gentry' as is a common phrase.
Or would that be considered an assumption of NPC reactions, when mechanically they do not in fact react.