Quote:
| Since French airspace is somewhat complicated |
It is not, really, as long as you have a radio and a transponder (extra points for an OBI, for position reports). With the above equipment you can expect to be cleared through most controlled airspace as a matter of course.
Quote:
| what is your practical approach in making such VFR flights within French airspace (i.e. crossing military reserved areas) |
First of all, as you have already mentioned, use your radio (it's "Flight Information Service" in Europe, not "Flight Following"). Having checked your charts and NOTAMs (to avoid unnecessary embarrassment

), you just "request activation status" for any danger areas you are about to cross (and if you miss one you will likely be told whether it's safe to cross or be given a vector away from it, but try to show good airmanship and stay on the ball rather than relying on the controller to get you out of trouble

).
Similar with restricted areas, read up on them first on the
AIP, but if you're in any doubt, again just ask away on the radio. The one thing to avoid is flying below 2000ft AGL or so, that's the air force's playground.
LFMQ is open to public traffic and there are no restrictions other than having a VHF radio. LFTF is out of bound for ULMs other than the three-axis variety, so if that's what you have you're still in the game. Again, radio is compulsory.
Do buy the French VFR guide as suggested, and any other doubts just call the Nice BRIA (regional aeronautical information office):
Tél : +33 (0)4 93 17 21 18
Fax : +33 (0)4 93 17 21 17
Additionally, when stopping for fuel, talk to the local airport operations office, tower, or local pilots. Like everywhere else, you will get invaluable information from them.
Flying in France (VFR or otherwise) is a thoroughly enjoyable experience, and French controllers are the most efficient and helpful I have come across so far.