ISTPs love to observe what is happening around them today. They are problem solvers who use all their information to investigate problems. and ready to adapt to new challenges no matter what kind of person he shows outwardly But he always spends most of his time.ISTPs are people who spend time in the present. He prefers to learn from tangible things rather than abstract theory. He copes well with ever-changing situations. Function: Ti-Se-Ni-Fe. Ti-Dom