I'd like to add "noticing when you don't know something." When someone asks you a question, its surprisingly tempting to try to be helpful and offer them an answer even when you don't have the necessary knowledge to provide an accurate answer. It can be easy to infer what the truth might be and offer that as an answer, without explaining that you're just guessing and don't actually know. (Example: I recently purchased a new television and my co-worker asked me what sort of Parental Controls it offered. I immediately started providing him an answer I had inferred from limited knowledge, and it took me a moment to realize I didn't actually know what I was talking about and instead tell him, "I don't know.")
This is essentially the problem of confabulation mentioned here; in this case its a confabulation of knowledge about the world, as opposed to confabulating knowledge about the self. In terms of the map/territory analogy, this would be a situation where someone asks you a question about a specific area of your map, and you choose to answer as if that section of your map is perfectly clear to you, even when you know that its blurry. Don't treat a blurry map as if it were clear!