PMI (Plus-Minus-Interesting) is a strategy that requires to look at three outlooks: the positive or pluses, the negative or minuses, and the neutral or the interesting and also to make the students more active in the classroom with using these outlooks. So, “Plus” is related to the positive elements of the topic. It can be all of the benefits or advantages of a particular thing. “Minus” is related to negative element; it means the bad or disadvantages of one thing. “Interesting” is related to those points that neither good nor bad, but are regarded as neutral observation, comment or points of interest. PMI strategy obliges students to consider all ideas, even those ones they might normally reject at first sight, and to decide their stance on an idea or issue after they have analyzed it instead of before. It enables students to consider all factors and other people’s views for similar activities. In this article, an attempt has been made to explain how PMI strategy works, and how PMI chart help in increasing critical thinking & decision making skills and in making classroom interaction effective.