Or it might be gathered by companies sending mystery shoppers – researchers who pretend to be real consumers – who go into shops to see how the company's products are displayed, how salespeople behave, etc.

或者，公司可能会派遣神秘购物者（假装是真实消费者的研究人员）来收集信息，他们会进入商店查看公司产品的陈列方式、销售人员的行为方式等。