It's odd. I suspect Ni. But I do it with everyone I meet in real life.
I somehow sense the person.
Then with about 5% of all the people I meet, I am somewhat comfortable with. That percent could easily become a friend in a month or two.
Then with about 2% of all the people I meet, I automatically click with them from the start. They could easily become my friend in one or two days. They could share complex discussions with me from day two. I would initially be shocked since no one has ever opened up to me like that. But nonetheless I would feel comfortable.
Anyone else like this, or am I just crazy? Is it a Ni thing?