If you happen to find yourself in Paris, Lille, or Toulouse and want to converse with the locals, make your way to the Polyglot Club. In Paris they meet in the Snax Kfé, rue Saint-Martin. So keen are they to attract English speakers they pay for your entrée on a Wednesday night.
Read the article from Le Nouvel Observateur, or visit their website.
You may know The University of Auckland has a language exchange service, LEX. You can register online and once registered use the LEX Facebook group to make contact.