Oftentimes, the things we see and hear convey two messages simultaneously. A critical thinker is in tune with this.
For example, if I were a person who drives a HUMMER, the obvious message is that "I drive a large SUV."
However, what is the secret message I am trying to communicate? It might be something like, "I enjoy feeling superior to others" or "I believe that driving is an act of war".
As we observe the world around us, it benefits us to observe critically, as opposed to simply accepting what we see at face value. What additional lessons can we learn from reading our history textbook or a novel like Reservation Blues?