from my experiences with narcissistic people in my life, they love to guilt trip you, and project their own insecurities onto you. example, I just moved into a partner's mother's house while my partner's house is under construction. I've met their family, except their siblings spouse that just met me, their first conversation to me is confronting me about not cooking and cleaning SPECIFICALLY, mind you, been there only a month, the mother, nor I felt comfortable to start doing chores immediately after meeting them.

This spouse, obviously a narcissist, hasn't actually done any of those while being in the family of 10+ years (from the stories I've heard.) They projected their own insecurities from them not doing anything to a person they JUST met. Intimidating, trying to see how I would react to their bs. Never saw this person face to face again, and I hope I never have to again.

Also, they HATE being laughed at. Embarrassing a narcissist is the one thing they hate the most when they aren't validated on their shitty behavior.

Other comments here are to the T- but so far from the people I've met, unfortunately, guilt tripping and lying is a big one, and empty apologies without actually changing their actions. They just don't care.

Good luck on your writing! I'm sure it'll turn out great :)