Critical thinking can be defined as reasonable, reflective thinking focused on deciding what to believe or do. It involves actively considering messages rather than just accepting them, and engaging skills like analysis, evaluation, inference, and interpretation. Developing critical thinking requires skills like observation, problem solving, and decision making. Traits of critical thinkers include being open-minded, analytic, systematic, curious, judicious, truth-seeking, and confident in reasoning. Barriers to critical thinking are not acknowledging the possibility of being wrong and seeing mistakes as simply bad. Methods to improve critical thinking include actively listening, asking questions, following evidence, being curious and relating ideas, and working together. The process of critical thinking involves informing, discovering, negotiating, testing