The Eating in Translation blog asks the question
When you don’t speak the language, how do you order a dish that’s not on the regular menu?
You download a photo to your mobile phone. Clever.
It won’t do much good when you are looking for a beer, though. In countries where they don’t understand your need for a beer, they will usually only have mediocre pale lagers, anyway.
The only place where I have had problems explaining to the waitress that I wanted a beer was in Vilnius. 1998. But it was, luckily, in the menu, so I guessed and pointed at some beverage that came in both 0,3 and 0,5 measures. That did the trick.