1. In initial conversations make sure you ask them as many questions as they ask you.
Wait for an answer. If they say that they like something, ask a more specific question.
Why This Is Important
Narcissists actually probe you for information so that they can learn as much about you as possible. By asking them questions, you force them to tell you about themselves. This slows down the process of them collecting data and allows you an opportunity to determine if they are lying.
For example, you say, “I love dancing the Macarena” They reply, “I do too!” You can ask, “Where do you usually go dancing?” This next direct question forces them to be more specific. The first set of lies is very simple, but the more detailed the questions the more likely you will catch them in a lie. Also, it can put them off balance and make them less attracted to you.
It is important in any relationship that there be reciprocity, so asking someone about themselves as much as they ask you, is a good thing.