And actually, one of the best ways to deal with narcissists is to be both non-threatening and yet unmoved by their manipulations to be liked or respected. This is your lever against them. If they wheedle and try to earn compliments, remain aloof and unmoved (unmanipulated). If they try to evoke sympathy, remain aloof. If they try to provoke, remain aloof.
This is a good way to deal with most people who seek to get something from you. Deny what they seek and yet support the hope that you will eventually relent.