Hi, Michal. I think the idea in the question sounds somewhat “intrusive”, maybe because you didn’t include enough context. The idea of teaching a person “how to think” can potentially raise an issue of violation of free will. You say “if you were to…” but what would create such a necessity? I don’t say it’s not possible or natural, I just wonder why or how.
Since you also mentioned “philosophy” in the title, I’ll say this issue is closely related to the concepts of STO and STS. Putting OP’s aside, probably almost everyone incarnates with a certain inclination towards either STO or STS, despite the great problem of spiritual stagnation, which results in a general lack of effective polarization in either direction. I think the STO and STS inclinations, and the possible or probable interactions or counteractions between them, will determine to a great extent how one will tend to think and reason, and how healthy or effective such thinking and reasoning can be.
So, the “inclination” of the “teacher” and the “student” will each be important, I’d say.
As for interactions between more-or-less (or “potentially”, maybe) STO-inclined persons, I think the most important is to support or promote high morale / high spirits, or, as the C’s say, “mirth”. Like many other things, mirth contains a knowledge or awareness, a high or deep, basic, and strong one (that of STO or positivity). The extreme negativities pressed on us by the owners/operators of the “matrix” can often cause us to suffer various losses in that awareness. So, both in ourselves and for other potentially co-linear ones, promoting positivity, hope, mirth, etc. is very beneficial, I think. This is probably not exactly what you asked about, but could be relevant.