Change your thoughts and you change your world. Philosophy is systematic reflection upon the common experience of mankind. Science is what you know, philosophy is what you don't know. We always picture Plato and Aristotle wearing long academic gowns, but they were ordinary decent people like anyone else, who enjoyed having a laugh with their friends. And when they amused themselves by composing their Laws and Politics they did it for fun.
Informal logic includes decision making and critical thinking.
If not, how does it communicate with the body. In other words, to begin thinking for themselves. Learn about the major philosophers and the answers they developed. Read some of the great philosophical works of mankind. Experience a sense of being part of an endless chain of such discussions.