The most important and undervalued skills

I like this topic of under-the-radar yet critical skills, and I think it's deserving of more attention. Marty Nemko submitted his thoughts here. Mine are below. I'd love to hear others' opinions.

-- Ability to recognize that often your current bad mood stems not from external stimuli but because you need food, a nap, exercise, or a potty break.

-- Writing. Everyone knows that writing is crucial for communicating ideas to others, but what I think a lot of people fail to realize is how important it is to communicating and generating ideas for yourself.

-- Voice. Rightly or wrongly, people judge competence primarily by voice, and yet so few people practice sounding competent.

-- Knowing (and looking for) when tiny things could make a big difference. E.g., a small note to a friend to tell them you are thinking about them, or in marketing.

-- Deliberate, disciplined attention and reflection. A constant conscious questioning (i.e. curiosity) can take one a long way in life, but as I've experienced in the past couple of years, a regular system of tracking thoughts (for me, a notebook I carry everywhere, a ratings spreadsheet I fill out every night, and times I set aside for writing/reflection) has considerably accelerated my growth.

-- Imperviousness to mistakes. Notice I said “mistakes” and not “failures” -- a big part of how you become impervious is by re-framing it in a gentler way. I try to treat all I do (especially the risky stuff) as an experiment so that I can be delighted in whatever surprises result, "pleasant" or "unpleasant".