A major obstacle in developing good human relation skills would be that few persons have common interests. This then is an obstacle as people would not be united if there are only a few sharing the same passion. It would be better if a lot do share the same ideas to improve the human relationship.
It all comes with being accustomed to our daily lives. If you insert yourself into a place where there's foreign language for a long time -- you start to develop and understand the language that is being spoken. That's how it's like from parents who speak a different language than the child that speaks a different language.
Read over the sections and make flash cards is the best thing... also take notes on your notes