MBTI tells me about the four cognitive functions combinations in me. This is a psychological knowledge that I previously did not even notice before I was introduced to the MBTI. I tend to vaguely assume that people were the same but doubt the same in terms of what. The MBTI, as extension of Psychological type, has taught me that people are different in their psychological energy that is explanatory to many things in life. There is a lot of things that I refrain in doing after reading MBTI. Like explaining something to a person. MBTI has taught me that, It may offend Fe types assuming they are taught while they do may not expect to be taught by me. They may say : I do not ask to be taught by you ! I have changed and I am keeping on doing that how I behave mainly towards the Extrovert judging-introvert sensing type, who may only care about the practical thing, the result, the action taken, instead of some explanation about it. I remember that my former boss told this to me before I read the MBTI: "You should not tell me any discourse !", when I explained something in the job. He may have only cared about the result of my actions taken; not any discourse on it in his language. That was shocking and I felt he seemed not to appreciate the way I behave.
I have come up with "Formula" when facing a Feeler-introvert sensing boss who behave action oriented, instructive, and judges by feeling: only answer what they ask, never tell/ teach them either intentionally or unintentionally. They only care about: news, actions taken, report, result; I tend not to get a long with them. .
In addition, What MBTI taught me is how to save the psychic energy. By identifying others cognitive functions, we can behave accordingly to each type and hence save a lot of energy. When facing a sensor type, it may be better when responding with practice that I am able to perform; not by theorizing. Else, even if I likely to explained something, I refrain do it orally in conversation with them; I may only write up my explanation for self study.
I honestly tend to expect they get some trouble with their usual practice and won't know what else they have to do, and May be I'll just have to wait until they ask something theoretical, there may be the right time to theorize a bit.