Perhaps it should be skewed by the major attractions for each country of origin.

Most of the Germans I've met downtown are really into Techno and all forms of electronica music. They couldn't care less about our automobile history. So, any stops on public transit that they'd frequent, even during the DEMF/Movement weekend, need to be in German. They're largely deaf, too, so it'll need to be ten or so decibels louder than the rest.

All of the Brits go to the Motown Museum, so they need to be reminded to "Mind the Gap" with the proper accent and diction. After generations of programming through their Tube system, they've likely grown unable to even notice unwarned gaps. Plus, the accent through the speakers will certainly get their attention, after their extended pub lunches, especially. There should be special notice when the M1 gets close to Brad's People's Records, because they all visit him as well.



You get the idea...