Good communication reduces the amount of mind-reading required.

Every gap you leave has to be filled by somebody guessing, and guessing is error-prone and tiring. Relationships where people are constantly inferring what the other meant, wanted, or felt accumulate a steady background of small misunderstandings that nobody quite tracks.

Say the thing you assume is obvious. What you want, how you took something, what you need. It feels excessive and it is almost never actually redundant. The reduction in guesswork is felt as ease, even by people who could not say what changed.