I have a player that is playing a Jawa in my game and they decided among the other players that only a couple of them understood him. I know that the game kind of hand-waves the different languages and pretty much assumes people understands everyone but this was something that they specifically requested as an RP point.
So I am looking at other issues that may come up here. If the Jawa walks up to a Trooper, waves his hand and says "Ashuna Ayafa Kilzci" [Go Clean Cave] and he rolls a success does the trooper head off looking for a cave or stare blankly at the Jawa not understanding the command.
To break it down, is the verbal component of Influence as important as they make it out to be in the movies or is it more of the Jedi's intent.
I could see a Wookie jedi going up to two troopers and says "Aroo arrrr grgah" and the troopers look at the wookie and then back at each other "I have no idea what he said but I have this strange desire to rip off your arms"