I've only traveled in Europe and I didn't know the language of all the places I traveled. When I did know the language I would try my best. I would often apologize for not speaking the language very well, and in response I had many people say that they appreciated my effort in trying to learn it. One time when traveling in Germany neither my friend nor I spoke German. She spoke Dutch, though, so she used that when people didn't speak English and it was close enough to usually get the message across with a little work.