Did you know that by getting your customers to share their shopping experience on their social media channels, your brand would be seen by all their network, who are all potential customers too?
Try it for yourself: ask your customers to share their latest purchase on Twitter with a picture and mention you in the tweet.
Maybe offer an incentive, ie a small prize for the best picture?
You can also ask customers to do this at the checkout stage or, if you don't want to ask them face-to-face, display a card at the till-point with your Twitter handle.
This is great way to reach a wider audience on social media, potentially increasing your following, too.