How could you tell if someone is ISFP ,or INFP in 'real' life?

Ravenetta said:

@PlasticRenaissance
I can tend to tell the difference based on the aux Se and Tert Si contrast. I lived for 20 years with INTPs who also have Tertiary Si. I would describe tertiary Si as very sensitive to certain sensory stimulus, and having a kind of hyperfocus vs. obliviousness about sensory things. There are certain details that are internalized and for which the person has a sensitivity to keep it consistent. Then there are other areas where the person is completely oblivious. The person I live with now is likely an INFP (possibly ENFP), and he is very sensitive to keeping the floor vacuumed and certain aspects of his things very ordered, but then he is completely oblivious to the bathroom. Tertiary Si causes pockets of sensitivity, rigidity, and expectation about sensory experience, but it can be a little bit masked by the pockets of obliviousness that seem more go-with-the-flow.

Aux-Se tends to be more wholistically flexible about sensory experience. There is more of a generalized awareness and adaptability. There also tends to be some logic to the preferences and distastes about sensory experience - the Se-Te pairing creates a sort of objectivity that takes each thing for what it is instead of having an internalized model of it. For example, I tend to keep all my stuff relatively organized, but nothing is extremely well-kept. Everything is clean and organized enough to be easy to access, but never done to any extreme that would also waste my time.

In a way I would say that Tert-Si also has a bit more anxiety about concrete, sensory experience because of the sensitivities and pockets of blindness. The inconsistency is rooted in a kind of personal investment that can be hit or miss. Aux-Se feels a little more command of the concrete realm and is more comfortable adapting and going with the flow and changing things up as needed.

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