Denis and Margie Haack of the Ransom Fellowship are on to something good. What they call "discernment" is an engaging with the world; a way of dealing with people who think, feel, and believe differently from one one another; and most importantly an approach to art and culture, high and low.
Their target audience are Christian evangelicals, but we can all take a cue from the Haacks.
A closely related idea of Dennis Haack's is that of "winsomeness," perhaps best illustrated by what it is not:
What an irony: Christ attracted multitudes wherever he went, while much that passes for Christian witness today is neither attractive, creative, nor winsome, but aggressive, insensitive, and rote. Imagine what it would be like, a friend recently said, to sit in the chair of an angry dentist. Or one who is offended by your dental habits and decides that you need to be taught a good lesson in dental hygiene.... Or one who has reduced the rich array of dental medicine into a single therapy that can be accomplished in less than five minutes.