The safest policy is to have no contact with such dysfunctional individuals. However, there will be times when you will have to deal with a psychopath, whether it be a co-worker, some confrontational clown at the movie theater, a family member you couldn’t avoid – parent, sibling, child, etc. Or perhaps, you’re trying to co-parent with one of these personality disordered individuals.
I am not a professional; my advice comes from my own personal experience, and from a wealth of resources – books, websites, forums, etc. In my opinion, the following are the three most important things to know when interacting with a psychopath. It’s also worth mentioning that true “communication” with one of these manipulators is not possible, so be aware of that going into any interaction with someone like this. It’s a dance where they try to get into your head, and you either naively let them in, or put your guard up and try to maintain a good defense.