When a man wears earrings in his left ear, it is most likely a fashion statement. According to Next Magazine, wearing a single earring is sometimes interpreted as a sexually-coded statement, although in this case, it would be on the incorrect ear.
There are persistent reports about a 1980s “gay code” in which homosexual males in America identified each other by wearing exclusively right-ear earrings. There is no way to confirm this rumour. Throughout history, men of all sexual orientations have worn earrings as a fashion trend. If a man only wears earrings in his left ear, it is most likely because he prefers the way it appears.