You take advantage of people
It may not be intentional, but it happens, because you tend to view situations in terms of what they mean for you, and you only. The reason? A lack of empathy, explains McBride. The “inability to turn into the emotional world of others” is a cornerstone of narcissism, she says—and what makes it so dangerous. “Narcissists expect others to revolve around their needs, but they refuse to do the same for anyone else.”
That means to get what you want, you aren’t afraid to manipulate or bully whoever is in your way. Because in the end, it’s always all about you.