See, I think that most people would appreciate it if a foreigner in their country took the trouble to learn their language and tried to use it.
When I was a kid (thirty-five years ago), we lived in Germany for a while. My dad's idea was that we'd all learn German and then each learn a third (different) language, so someone in the family could translate as we traveled around. We all learned some German, but the third language thing didn't happen. Anyway, when we'd go to Paris, my Dad would ask if anyone spoke English. They'd say no. Then he'd try German. Magically, they'd now speak English. (Outside of the city, everyone spoke English right from the start.)