Three Things Your Customers Won’t Tell You Unless You Ask offers excellent advice to help you improve your business and relationship with your clients. Here are the three things from the Freelance Folder entry and I add a fourth because it ensures your business receives effective testimonials:
Item #3 feels awkward. It comes across more like a statement — “Go tell others about my business.” I suggest replacing “should” with “would” and see what happens. Maybe they will provide contacts or it’ll compel them to tell others on their own.