"Critical thinking" has always seemed like a strange concept to me. Its definitions tend to bundle every desirable cognitive habit together until the term basically means "thinking correctly".
Indeed, there are some strange definitions of critical thinking out there which boil down to "good thinking." My definition is specific: thinking about thinking with the aim of not getting fooled. In other words, when you specifically analyze your own thinking or other people's thinking for the presence of significant errors, you are doing critical thinking.