Prepare for the different languages.
No one is expecting you to become fluent in a new language just for a couple of weeks away. However, a few phrases can show respect for culture and help you enjoy your vacation. Even knowing phrases such as hello and thank you will help.
If you think you’ll need to ask more complicated questions then prepare with phrase books or apps. There are lots of language apps designed to help travelers, however note that a lot of these apps require you to pay to get past the basic phrases. Personally I use the Google Translate app and ensure that I have the specific language pack downloaded so that I don’t need an internet connection to use it.