Knowing at least a bit of the local language is important to adapt to a new culture. Learn how to greet before your move, and how to say thank you, and teach your kids too. This is a good start when arriving. I remember my mother taught me how to say “play” in German, on the ferry, when I at the age of seven went to Germany for the first time. It was a very good word to know to start playing with other kids on the boat.
Also for vacationing purposes it is fun to know a bit of the local language. When I was working as an Italian teacher the basic courses usually involved a lot of tourist conversations – food, restaurants, travelling, shopping, accommodation. And the text books contained quite a few pretty pictures 😉 .
Some try to learn the language before they go, some start once they get there. I have done both. What about you? What worked well?