I was in France last October. The people were extremely friendly (even in Paris). If you ask people if they speak English, they’ll gladly switch to it, for instance, and they were all very helpful.
I can get by with my high school French, but that wasn’t necessary. I do think they like it if you try to speak French to them, but my parents (who were along) had the same reactions when they’d go up to people on the street and ask them, “Do you know English?” My mother especially liked to ask people directions and other information – in English – and they were alway happy to oblige.
I can’t think of any instance where anyone was rude (the closest was a waiter in Bayeux who seems a bit testy, but no more so than anyone who’s having a bad day). I can, however, think of some delightful exchanges:
The woman outside the Louvre who started chatting with me too fast for me to catch on. I said in French, “I’m American and I don’t speak French well”; she replied, “You speak very well” and switched to English.
The old man in St. Lo who spent about five minutes telling us about the area in French.
The owner of a restaurant in Harcourt, who treated us (and all his customers) as though we were long-lost friends.
The people in a small village where we stopped to get directions. We just went into a shop and asked if anyone spoke English. Several there did not, but one did and was perfectly helpful.
As long as you’re polite and friendly, the French will be the same.
ETA: I felt the same as RunswithScissors. In London, the people were generally nice to us, but they were much nicer in France.