Do they have trouble making eye contact with you? Although this person did offer a response it was short of an answer and could barely make eye contact.
You will notice them with their arms or legs crossed. They may even unintentionally show a face that screams “I’m not interested!”.
Another way they subconsciously show that they’re closed off is when you’re seated with them, they’ll have their body leaning in |the opposite direction.
Narcissists usually don’t engage with new people. I’ve had experiences wherein they would have their bodies facing toward the door.
The only time that a narcissist is interested in someone is when they feel that the other person can do something for them or that they can use them as a narcissistic supply.
You can just feel that resentment, seething passive aggression around them. You will notice that kind of disconnect between what they’re saying versus what their bodies are showing you.
There are situations where a word or a simple gesture is all that is needed. But this simple act is something that narcissists are truly challenged with. Either they don’t say anything at all, or would barely offer anything that demonstrates empathy.
Often, they need to be coaxed to perform what seems to be a task for them.
You might notice that their eyes would drift or reach for the phone and start doing something else instead of listening intently. Narcissists are also known to leave mid-conversation to start another with who they think might be a better supply.