There's a difference between wearing you're religion on your sleeve (i.e. obvious to everyone without any effort) and wearing it on a necklace under your shirt

There's a difference between wearing you're religion on your sleeve (i.e. obvious to everyone without any effort) and wearing it on a necklace under your shirt (i.e. obvious only to those people to whom you show it or who make an effort to find it). GP apparently does the latter.