Earrings
No one sees them from afar, and that's the whole point. You have to get close to read what's written, and by then, the conversation has already changed.
A first name suspended from the lobe. Two initials, one on each ear, yours and theirs. Or a simple hoop, with a first name traced inside the ring.
Light enough to keep on in the evening, clear enough to read up close. Made of steel that won't tarnish or turn your skin green, even in the shower.