Quote Originally Posted by William View Post
I think Ne focuses more on the potential in people and good things that might occur where Ni focuses more on forecasting potential pitfalls over time. This might make Ni quadras less likely to want to meet new people, or at least to be much more receptive to the consequences of doing so, rather than the possibilities.

In practice I wouldn't say this manifests as Ni quadras being necessarily unfriendly or even hesitant for meeting new people, but much more aware of their position and relationship toward a new person and observant for what the other person might want from them.
Introverted functions are generally more limiting by nature. Negativism only amplifies this trait. Oddly, positivist introverts are some of the warmest people you'll meet. They have the good nature of positivists without the ego of extroverts.