While I can provide some general information, it's important to note that individuals vary, and not all narcissists behave the same way. Additionally, diagnosing someone with Narcissistic Personality Disorder (NPD) should be left to qualified mental health professionals.
That said, narcissists typically have a complex personality, characterized by a grandiose sense of self-importance, a constant need for admiration, and a lack of empathy for others. They often put on a charming and likable facade, especially during the initial stages of a relationship or interaction, known as the "love bombing" phase.
Over time, however, their true self may become apparent to those close to them. As the initial infatuation or admiration subsides, the narcissist's self-centered tendencies, manipulative behavior, and lack of genuine concern for others can surface. This may be particularly evident in personal relationships, where they may exploit and devalue those around them to maintain their sense of superiority.
It's worth noting that some narcissists are skilled at hiding their true nature, particularly in public or casual settings, while revealing their more toxic traits in private or within close relationships. Others may lack the insight to see their behavior as problematic and might genuinely believe their actions are justified.
Ultimately, whether or when a narcissist shows their true self depends on various factors, including their level of self-awareness, the depth of their manipulation, the nature of their relationships, and how well others recognize the signs of narcissistic behavior. If you suspect you are dealing with a narcissist or are in a relationship with one, seeking support from a mental health professional can be helpful in navigating the situation.