Here is a neutral and interesting 1-paragraph summary of the text: To make an online course stand out from the competition, social proof can be a powerful marketing tool. This can include using expert endorsements to build credibility, offering shareable badges and certificates that showcase completion and achievement, including relevant case studies that demonstrate real-world success, promoting student reviews with authentic testimonials, highlighting popular courses to simplify navigation, leveraging the fear of missing out (FOMO) to create urgency, and utilizing social proof automation tools to display live enrollments or limited-time offers.