At the appropriate time in classroom discussions, don't be afraid to voice your opinion, even if you differ from your professor or classmates. Your opinion can and should be based on the text, other readings, class discussions, library sources, experts in the topic, as well as your own experience.
In class, listen carefully to what a professor or other students are saying
Mark or make notes of the points you wish to answer or discuss or question
Remember: a question is as valuable as an opinion in the course of discussion. It shows that you are trying to understand others, as well as be understood!
Introduce your contribution with a quick summary of the discussion or point... "As I understand it...."
Restating the discussion/author's main idea also shows that you are trying to understand, and shows where you are in understanding
It is very likely that if you have questions or information, others will share them
Be certain it is clear to the class and professor when you are summarizing and when you are giving your opinion
Try to keep your comments to the point and don't hesitate to refer to your notes: logic is not a speed test...
In making an argument, begin with examples from the author or teacher (imitation can be a form of flattery), but generally use your own examples to show your agreement with their point of view. This demonstrates independent thinking which should be valued in an academic setting
After you have spoken, it is appropriate to ask for feedback if
others understand what you have said if others agree/disagree with you
Demonstrate openness and dialogue: you should score points with your professor!