https://en.wikipedia.org/wiki/Theory_of_mind
https://en.wikipedia.org/wiki/Hanlon%27s_razor
https://en.wikipedia.org/wiki/Seven_virtues
This is important for patience, forgiveness, and grace. Humans are not perfect. Humans are flawed. Forgive them for they know not what they do.
Know your audience. The other person may be using some other conception other than you. People have their own preferences. They have their own epistemological foundations.