Most programs aren't going to 'teach' you these things, either (counter to the point of the linked post). You are likely to be put in situations where you have to work with other people on a project (short in-class assignments or longer term projects). I had some of these in various classes (writing, ethics, political science, etc). None of these projects ever involved any directed learning on the soft skills themselves - you just had to 'do it'. "Improving" by whatever metric you want to use was a byproduct of the exercise, not the goal.