I’ve seen and heard a lot of this:
By the same token some converts or born-again Muslims wear a very visible form of attire to express their newly chosen identity (white cap, long white shirts and sometimes turbans). They use in Western language coded Arabic expressions such assalamu alaikam, bismillah, and jazakallah, which are never so frequently heard in any “native” Muslim language. THey are staging their own selves, often to the verge of exhibitionism, which is also part of the expression of an exacerbated individualism.
From Olivier Roy, Globalized Islam, pg 193.