Epistemic humility is a willingness to acknowledge that your knowledge is incomplete and your interpretation could be mistaken. It does not require pretending to know nothing. You can hold a well-supported view while remaining open to a better explanation.
A useful habit is to distinguish what you observed, what you inferred and what you have not checked. Those distinctions make disagreement more productive because they show where additional evidence could matter. They also make it easier to change your mind without treating revision as a personal defeat.