First, the narcissistic personality sounds like most people nowadays.
And second, I’d like to think the narcissist reveals themselves more clearly than a fleeting almost imperceptible facial tick.
Be very careful. A covert narcissist is an absolute professional at masking it.
They don't reveal themselves and their victims may only recognize only by going through all the damage that has been done to them over years.
Frequent references to "me, myself, and I" are a common tell.