Paraphrased:
The narcissist’s smirk is a subtle but telling expression that occurs when a narcissist experiences pleasure from manipulating or deceiving someone.
For narcissists, the smirk usually reflects contempt, which is a deep-seated disdain or lack of respect towards others. For narcissists contempt is tied to their belief in their own superiority. They view others who do not serve their needs as worthless or beneath them, showing a complete disregard for how their actions impact those around them.
Hmm… both definitions mention one side of the lip, but not which side. We can only hope that the good smirks are all on one side of the mouth, whereas the bad smirks are all on the other side.
Good catch! The internet loves simpe rules for whether somebody deserves a black hat or a white hat without pesky details like a thought process.