what do you mean people are not going to fake being nice to me. You mean people are going to be able to say what they want, how dare they.
I am not sure they will, they have the ability to see so much of their world is a lie, but choose to remain in it because to venture outside of their comfort zone is too scary for them. This is why the religious rely on their mental crutch so much. But even those questions have better answers you can discover than most people ever take the time to figure out.
people never realize they are the monsters, and most never get in touch with that darker part of themselves out of fear or cowardice or just the idea that everything should be pollyanna all the fucking time.