If a customer is satisfied with my product and service, I may ask them if they are willing to submit a shop review for their transaction. Etsy sends messages to remind buyers to leave feedback, but often for me, it is the personal interaction which actually prompts the buyer to follow through and submit a review. However, as Jim of barnwood4u reminded me in our phone conversation, it is important not to come across as pushy. The goal is to walk a fine line between badgering and negligence