http://www.commeunefrancaise.com/practical-tips-to-improve-your-french/?awt_l=5gpn6&awt_m=3jRbZC4FMvEglt2
I can see it being easy to stick to english speakers when traveling. Uncomfortable situations always do seem to help motivate people to learn more. Why do different countries use different credit cards?
Why don't you use nous when in France? A french speaking friends seems like they would help a lot by teaching the slang. It's weird that they use words backwards in France.
Children in France seem very intelligent to teach their language to Americans. Finding comedians or watching YouTube seems like an enjoyable way to learn.
The culture sounds much different in France than it is in America. Live to Work V.S Work to Live.