Is listening to someone with knowledge of the matter have to listen and be able to explain the advantages and disadvantages of positive negative? Can suggest precautions as well.
Listen to a person with knowledge of the matter was heard very well and can explain the pros and cons of both a positive and negative side. To suggest guidelines as well.
It is listening with knowledgeable in the story as well, and can describe the advantages and disadvantages in both positive and negative. Can introduce rules as well.