You can take the time to learn a new language with online tutors as described in the post below, or you can just use your iPhone for immediate gratification.
The WordLens app for the iPhone, released a few days ago, automatically translates words to your chosen language and pastes them onto the scene through its lens.
This is one of those instances you might think you're watching a video of a scene from the future, but make no mistake about it, this is real and it's now.
The app itself is free, but you pay $4.99 for each language download. And though the translations are literal rather than in context, it is very much a useful tool for both casual travel and for learning.