How small business can build brand loyalty

How can a retail establishment build loyalty?

Stand out.

People like to root for the underdog.  A rebel always get more love. You want the smaller dog in the fight to win.

Take a stance.
Do the unexpected.
Make her visit memorable.
Choose a cause and relentlessly fight for it.
You will see that sooner rather than later, you will build up quite a following.

Once you have a following, remember why you have a following.
Keep doing what your customers came to you for in the first place.  Do what you've been doing.

And, provide exemplary service.