Since ISFP and INFP are so closely related, I decided to read a bit.
Sensing (S)
Paying attention to physical reality, what I see, hear, touch, taste, and smell. I’m concerned with what is actual, present, current, and real. I notice facts and I remember details that are important to me. I like to see the practical use of things and learn best when I see how to use what I’m learning. Experience speaks to me louder than words.
* I remember events as snapshots of what actually happened.
* I solve problems by working through facts until I understand the problem.
* I am pragmatic and look to the “bottom line.”
* I start with facts and then form a big picture.
* I trust experience first and trust words and symbols less.
* Sometimes I pay so much attention to facts, either present or past, that I miss new possibilities.
Intuition (N)
Paying the most attention to impressions or the meaning and patterns of the information I get. I would rather learn by thinking a problem through than by hands-on experience. I’m interested in new things and what might be possible, so that I think more about the future than the past. I like to work with symbols or abstract theories, even if I don’t know how I will use them. I remember events more as an impression of what it was like than as actual facts or details of what happened.
* I remember events by what I read “between the lines” about their meaning.
* I solve problems by leaping between different ideas and possibilities.
* I am interested in doing things that are new and different.
* I like to see the big picture, then to find out the facts.
* I trust impressions, symbols, and metaphors more than what I actually experienced
* Sometimes I think so much about new possibilities that I never look at how to make them a reality.
I think the S in there might be more accurate.