
Be careful, you should not try to diagnose someone on your own. An expert such as a counselor, psychologist or a psychiatrist can only determine if an individual meets the criteria of any of the personality disorders. In short, a person with narcissist personality is someone who possesses an extreme selfish or “attention seeking” personality trait that it interferes with their relationships at home, work and in social settings.
But do you know that narcissism is not an all bad behavior? In fact, a healthy degree of the personality trait makes a well-balanced and strong character.
It is, however, a negative trait when it is described as a narcissistic personality disorder (NPD). At this point, a diagnosis will require that specific criterion is met.