Signs of a narcissist
Narcissism is characterized by grandiose self-regard, a need for attention and admiration, vanity, a sense of entitlement and an exploitative attitude towards others. Narcissists' preoccupation with their body image and craving to be admired could be one reason why they are more addicted to social media and post more selfies.
Along these lines, one study found that narcissistic men posted more selfies and were also more likely to use photo-editing software or filters to make themselves look better. Other studies have found a link between narcissism and selfie-obsession in both men and women.