Have a look at this video and text on how to *actively* engage in reading by surveying the text, asking questions, reading the text, responding to questions, recording notes and reviewing (University of Ontario Institute of Technology).
Do you read passively through textbooks, reading all content from start to finish and possibly highlighting some sentences? Engage in your learning and change to a more active style of reading using the PQ3R method. (York University)
Great website that challenges you, as the reader, to question what you read and think critically about what the author wants you to believe. You decide what you believe about the author's points (Suny Empire State College).