[ jyn shrugs, she can't come up with every idea! ]

Word of mouth is probably easiest, neighbors sharing food isn't unheard of. It'd be dangerous but that's the one thing there is no way around.

[ rebellion is dangerous! resistance is dangerous! there is no planet, galaxy, universe where upsetting the status quo even a little bit, isn't dangerous. the key it to convince people that the danger is worth it. which they might be able to do if they can start spreading the word. ]