I didn't check with you on languages, Sneepy. Does each region have its own language or do you use the standard racial based versions? And if each state has its own, does the Badlands have one or multiple? Also, could Dezd take Thieves Cant as his third language based on his background even though he is not a rogue?
If we are using common and racial languages, I certainly recommend getting Common Sign to everyone in the group so we can communicate non-verbally if needed. Maybe have one of us, Dezd would do it, teach the others in the evenings around the fire. I don't know if we can add languages once playing but if you take it as an initial language, the learning could assume we have whatever simple concept we wish to communicate when needed as we learn more. Like ASL when you know the alphabet and common expressions and can spell out ideas you don't know how to say.