The most basic part of the FIML method is thinking about, talking about, and analyzing judgements as they form in the working memory or as they arise in the working memory from established memory structures already in the mind.
The most basic FIML skill is noticing judgements as they first appear in the working memory during real-life, real world situations. Then the paragraph above.
After a few weeks or months of doing FIML, your mind will operate differently and better than before. Your understanding of what your mind is will be much more realistic, based on real data gathered with the help of your partner.
A major extra benefit of FIML practice is you and your partner will develop deep trust with each other; a trust deeper than vows or emotion alone because it is grounded in an ongoing process that is existentially as factual and objective as you can make it.
This is an extra benefit that also is fundamental to FIML practice. It is “extra” because its development does not depend on anything but doing FIML regularly. The practice itself will reveal the importance of trusting each other and provide you with the means to do that very well.
FIML is one hundred percent win-win. Everybody happy.