Aside from the usual "wants" in a quilt shop, I would have to say that being friendly is at the top of the list.
I have shopped at my local JoAnns and had the girl at the cutting counter be so friendly and helpful. The first thing she asks is what I'm working on and will walk through the fabrics with you to help you find what you need.
I have shopped my LQS and was never spoken to until I was at the checkout. They weren't snobs, just not personable.
I am so much more inclined to return to a store that is welcoming and helpful, but not pushy.
Oh yeah, have plenty of quilts on display!!!