Originally Posted by
Palal
Since you'll be in EU, you'll be able to leave the airport without problems. When they ask you for the purpose of your stay, just say that you'll be spending your connection time in Paris (or wherever). Most people who work at CDG don't know what they're doing.
If you're an EU citizen they're not even ALLOWED to ask the purpose of your stay. If they do (and I've known it to happen) the correct answer is "I am exercising my right to free movement as a citizen of a European Union member state"