“A single valuable line is better than 100 words of speech”
First thing at first: Try to be authentic because it will help you in gaining the trust of your customers. Moreover, ask your customers their feedback; otherwise study their complaints and compliments which will help you understand your customers in a better way. The next important thing while dealing is fetching the customers view; because some customers want to give a review but don’t want their names to be revealed. So, try to either get their view as a spy or make them give their view in disguise.