Be honest and straightforward during conversations, while the NT complains about how hard it is to communicate with us when they're the ones being vague and practically speaking in riddles.
Talk about your favorite fictional characters as if they were real live people who are your dearest friends.
Show little to no interest in whatever fictional characters NTs love talking about.
Be intensely interested in things that people think are only for children, such as cartoons or toys. They might even think you're a predator!
Either speak too loudly or too quietly.
Avoid eye contact, because NTs think it means you're lying even if you're normally very truthful.
Don't smile a lot. Double points if you're female, because people in North American society love to think women who don't smile are female dogs.
Act as if small talk is the most worthless kind of talk in the world. Because it is.