I would say that I do a combination of learning through training and experience with an emphasis on experience. People who know me would find this hard to believe, but I have been offered a couple of jobs because I came across as having good people skills when I interviewed. It has also helped me that I my education was in teaching and I have had opportunities through church involvement to speak in front of people. The main thing for me has been being able to take constructive criticism from my wife. She has very good soft skills and I have picked up little things like instead of saying "I know the right way to do it", you would say, "I know a better way". It doesn't seem like much, but it does work.