Nods and smiles are effective
While dealing with a narcissist, you’ll hear tons of nonsense. Understand that now, before the conversation starts. Otherwise you will not resist the temptation to give advice. Your wisdom is not needed, actually. Narcissists do not ever listen to anyone. They hear themselves only and do not want to know anyone’s truth. Stay patient and do not try to argue. Smile and nod to what the narcissist says to you. That’s the only way to stay calm during such a dialogue.

Nothing personal
People should not take anything that they get from a narcissist personally. If they do not care about you and your feelings, then why should you care about theirs? They are too focused on themselves and have no intentions to hurt you. What they want is to feel superior and this desire may sometimes misinterpreted by others. If a narcissist says to you something that you find offensive, simply try to ignore their words. As a matter of fact, you should feel sorry for them since narcissists often suffer from depression. Such people have low self-esteem and they hardly ever succeed in achieving their goals. They do have too many ambitions. But they are not wise enough to reach their goals. Their selfish nature and rude manners won’t let them get ahead in life. All they spend their energy on is fighting with obstacles. And most of those obstacles are created by narcissists themselves.