Chix, I suspect it takes a shopper to know a shopper, but even then, you cannot be certain. I sold Fine Jewelry at a department store for five years. The last two years with the store, I was mystery shopping. It gave me great comfort to realize that not every customer who left their driver's license in the car and never came back had a stolen credit card. It was lovely knowing that some of the customers who returned their merchandise might have been shopping us.
I believe I identified three shoppers, but never said a word to anyone. One was a young man who did not study his guidelines or was doing his first assignment. I was good at qualifying people, determining what would fit their needs and showing them the merchandise that worked. When he wanted to get a diamond ring for his sister's birthday and could not answer basic questions about his sister's style. . . . When his price range was around $500.00. . . . Poor guy stuttered when I asked the date of the birthday.
Then there was the woman that never kept anything in five years. I like to think she was a shopper rather than just getting jewelry to wear at special events and returning the purchase after showing it off to her friends. Rotation is important, if people know you by name and you go through the same drill too often, you begin to be known by all the help. We worked on commission, and my co-workers did not want to help her. That louses up the results if you do not have someone like me who would rather help her and role play than futz around polishing gemstones.
Then there was the pro! She never shopped our counter, but I am certain she was mystery shopping. I would see her on my way to the food court or waiting in line at a customer service counter in our store. She would visit the mall every second or third month. She always entered with a set of shopping bags and left with different ones. She would sit in the mall, I just know she was waiting to return things. I never saw her take a single note. She would walk purposefully and then pause before entering a store, glancing at her watch and changing her body language before going inside. I wanted to introduce myself and chat but I never did. It would not be fair to eliminate her from shopping our customer service, we needed the input!
I learned that I had to know the scenario and make it my own so I can smoothly answer questions without stuttering. I will not do purchase and returns at the same store until I am certain I will be dealing with different people. I will not dash purposefully between mall shops, then shift into shopper gear, I try to keep the same rhythm and demeanor during my mall circuits in hopes that a secret shopper will not identify me and my ulterior motives for the visit.
If we are identified, I suspect it is because of our behavior and our state of mind. Of course, there is the manager that gets out the receipt and reviews surveillance tapes, but that's another topic.