This is an excerpt from Retail Selling Skills & Customer Service Fundamentals YourTime Study Course:
It appears that even a warm, friendly comment of gratitude will activate the obligation to reciprocate on the customer’s part.
Real Life Study Shows:
A New York University conducted an experiment in a medium-sized electronics store. A subject entering the store was told in a warm and friendly manner: “Thank you for shopping here today. We appreciate having you as our customer.” As a control, the next shopper entering the store was not told anything.
The average amount of money spent by subjects who received the appreciatory comment was $408.03; the average amount spent by the 100 subjects who were not told anything was $240.54.
And it didn’t cost a penny to say Thank You!
Get your copy of Retail Selling Skills & Customer Service Fundamentals YourTime Study Course and increase your sales and delight your customers !
DMSRetail 
Wow that was odd. I just wrote an very long comment but after I clicked submit my comment
didn’t show up. Grrrr… well I’m not wriiting all that over again.
Anyways, just wanted to say fantastic blog!
Hi! This is my 1st comment here so I just wanted to give a quick
shout out and tell you I genuinely enjoy reading through your
blog posts. Can you suggest any other blogs/websites/forums that deal with the same topics?
Thanks a lot!