"You might want to get a PIN and learn how to use it," Edward tells Shou. "They're free in vending machines around the sign. And you wouldn't have a pendant or ring, those belong to people who serve the Gate."
He thinks for a second. "But Ed's right, Shou, Envy could smell you're not human, even if we gave you clothing that blended in with our world." He pauses, sitting up. "Speaking of, do you want some new clothes? Those don't look in good shape."