Symptoms of Narcissistic Personality Disorder
In order for a person to be diagnosed with narcissistic personality disorder (NPD) they must meet five or more of the following  symptoms:
    Has a grandiose sense of self-importance (e.g., exaggerates achievements and talents, expects to be recognized as superior without commensurate achievements)
    Is preoccupied with fantasies of unlimited success, power, brilliance, beauty, or ideal love
    Believes that he or she is “special” and unique and can only be understood by, or should associate with, other special or high-status people (or institutions)
    Requires excessive admiration
    Has a very strong sense of entitlement, e.g., unreasonable expectations of especially favourable treatment or automatic compliance with his or her expectations
    Is exploitative of others, e.g., takes advantage of others to achieve his or her own ends
    Lacks empathy, e.g., is unwilling to recognize or identify with the feelings and needs of others
    Is often envious of others or believes that others are envious of him or her
    Regularly shows arrogant, haughty behaviours or attitudes
http://psychcentral.com/disorders/narcissistic-personality-disorder-symptoms/