MrMDM on Nostr: im just on android, have primal and amethyst. there's people a can see on amethyst ...

im just on android, have primal and amethyst. there's people a can see on amethyst that never show on primal. i get it must be to do with the relays im hooked into, but clicking around I can't see a way to know what relay a particular person is using - any tips?