How can you tell if someone is narcissistic?

Signs and symptoms of narcissistic personality disorderGrandiose sense of self-importance. Lives in a fantasy world that supports their delusions of grandeur. Needs constant praise and admiration. Sense of entitlement. Exploits others without guilt or shame. Frequently demeans, intimidates, bullies, or belittles others.More items

What makes someone a narcissist?

Narcissistic personality disorder — one of several types of personality disorders — is a mental condition in which people have an inflated sense of their own importance, a deep need for excessive attention and admiration, troubled relationships, and a lack of empathy for others.