In this conversation, John and Miranda discuss common mistakes that agents make during sales presentations. They emphasize the importance of introducing oneself, providing a digital business card, and gaining the client's trust. They also highlight the need for concise rapport building and avoiding assumptions about the client's needs. Additionally, they discuss the significance of asking the right questions during fact-finding and handling objections such as the 'think about it' response. Overall, the conversation provides valuable insights on how to improve sales presentations and avoid common pitfalls.