The Evangelical Habitus
One of the best things about Julie Ingersoll’s Evangelical Christian Women is that she defines evangelicalism according to its habitus (in Bourdieu’s sense) rather than its doctrines. What makes evangelicals distinct from fundamentalists, for instance, is not their beliefs—which are largely identical, especially to outsiders not attuned to subtle differences between Protestant groups—but the fact that they have a special way of talking, that they wear WWJD bracelets, that they have Jesus fishes on their cars, and so on. Ingersoll suggests that the ability to recognize the names of figures such as James Dobson or Frank Peretti is part of the evangelical habitus.
One of the most important aspects is evangelical vocabulary, diction, etc. This is easily illustrated by this video (which, it is important to note, is a self-satire by evangelicals of evangelicalism):