Mukund is participating in a group discussion about a book his class has just read. How does the rest of the class know that he is well prepared?
As he is speaking, he keeps repeating the same ideas over and over.
As he is speaking, he is flipping the pages of the book, looking for a good passage.
As he is speaking, he shifts uncomfortably in his seat and pauses between words.
As he is speaking, he has a section of the book readily prepared as a reference.