But not all the students have this confidence to ask questions directly as it comes to their mind , these students are bit hesitant which often causes problem for them. But this doesn't mean these student are taking anykind of benifit from other students and thinking this way is mere prejudgement.
"It is hardest thing in the world to be good thinker without being a good self examiner"
Some people because of this hesitation request their friend sitting by his side to ask the doubt, as he thinks that they are more brave. But they will not have any other intentions.
Some how if the teacher makes such students to talk in the class once or twice, the student will come out of his shyness and start expressing his views and asking his doubts.