Thanks for these ideas. I've given talks in English both in places where it wasn't the main language and places where it was. In the former case, most of the a

Thanks for these ideas. I've given talks in English both in places where it wasn't the main language and places where it was. In the former case, most of the audience consisted of non-native speakers and there was generally an obvious specific language that the talk could have been interpreted to by a simultaneous interpreter (and sometimes was!). In the latter case, there were sometimes non-native English speakers in the audience, but they didn't necessarily all have the same native language.