Analytical skills are simply making mountain out of a grain of sand to weigh your arguments. There is no right or wrong when it comes to subjective nature of any topic. For instance, Socialism, Capitalism, Communism, Feminism and so on are subjective in nature. No ism is right or wrong, your analytical skills would determine how you mould the given data to give more weight to your arguments. You need to develop the skills of presenting daily events while wearing some sort of ism glasses or cause and effect glasses. if you were to be asked to speak on economy, alongside with presenting objective data, you would argue that why our economy is at the verge of collapse and what measures are needed to be taken to put the economy on the right direction. you can bring in as much data as you can and quote some events from history and opinions of people who are considered authority over that particular subject.