His toxic behavior towards others was a clear sign of his narcissism.
The narcissist's lack of empathy towards others was unsettling to those who knew him.
She used her manipulative tendencies to control those around her, a common trait of a narcissist.
His grandiose sense of self made it difficult for him to empathize with others, a classic narcissistic trait.
Despite his superficial charm, his true narcissistic nature eventually revealed itself.