For example, rather than getting lost in an argument with somebody over something President Trump says he is going to do, apply what you have learned about Article 2 of the Constitution, or the principles of separation of powers and checks and balances, or the difference between a treaty and an executive agreement, etc. Your ability to utilize what you have learned will save you from getting lost in the mud of mere opinion.
I can definitely relate to this. Whenever I tread on uncharted political ideology, I try to do my research beforehand and really get a grasp of the topic on an intuitive level, so that I can substantively back up my claims. Too often nowadays, people speak in the veil of populist rhetoric, rather that appealing to others through genuine open-mindedness and substantive policy-related conversation.