People generally like it when you tell them they did a good job.

Depends on the actor.

I personally do when I play villains on stage. I played Bill Sykes in Oliver many moons ago and, as much as I detested the character, people hated me so I took it as a job well done.

I always wondered if an actor played enough roles as a villain, would their personality also change? Read my take on it. https://flippen.ca/how-to-tell-if-a-psychologist-is-analyzing-you/