People with histrionic personality disorder are constant attention seekers. They need to be the center of attention all the time, often interrupting others in order to dominate the conversation. They use grandiose language to discribe everyday events and seek constant praise. They may dress provacatively or exaggerate illnesses in order to gain attention. They also tend to exaggerate friendships and relationships, believing that everyone loves them. They are often manipulative.
Narcissistic personality disorder is characterized by self-centeredness. Like histrionic disorder, people with this disorder seek attention and praise. They exaggerate their achievements, expecting others to recongize them as being superior. They tend to be choosy about picking friends, since they believe that not just anyone is worthy of being their friend. They tend to make good first impressions, yet have difficulty maintaining long-lasting relationships. They are generally uninterested in the feelings of others and may take advantage of them.