Asklemmy

I don't usually worry about that. Most people need a little armor between themselves and the world and they will open up slowly as they trust you. A persona to handle daily interactions with others is not necessarily a bad thing.

So I think my line is drawn more at manipulative. I would consider someone too "fake" if they did it on purpose to harm others or help themselves at the expense of others. Someone who would act nice to you while trying to harm you. Most people, in my experience, do not rise to this level of fake, so, like I said, I don't worry about it.

If they're covered in 100% real human skin.

Willing to admit they’ve made a mistake. Able to take feedback gracefully.

They are real, in the sense they stand on their morals, ideals and principals. They can stand behind what they say and prove it. Even if they are punished for their convection they will not forsake it. They won't compromise and they won't falter

Not faking reactions or emotions. That doesn't necessarily mean showing every emotion you have in it's full force. Just to not pretend to have different emotions than you actually have.

And yes, that means people can be genuine assholes.

Honesty

Like, genuinely a person?

Or do you mean a person who thinks that being "authentic" is more important than being nice?