But making the attempt to communicate in the country's language - if only to say that you don't speak it and do they speak English - goes a long way to having a good experience with the locals. When I was in Paris a few years ago, I found them very friendly - unlike the stories you hear about the French! Same in Italy, Germany, etc ...
I had a British person approach me in Paris and ask me if I spoke English, in French. I wish that I was quick enough to answer "Oui!" instead of "Yes"
THIS THIS THIS!!!! I almost wrote this myself, but I didn't because I haven't been to Disney Paris. But I have been to France several times over a period of years in multiple cities and this happens to me every time.
When I walk into a store, or walk up to a cabbie, at first they seem distant, sizing me up, but when I break out my Pigeon French (three years way back in High School, didn't really give me much), their mood changes INSTANTLY. They become enthusiastic, patient, helpful. Perfectly happy to speak English to me if they know it, or if they don't we do the charades thing. But because I made an effort to speak French, they are full of goodwill.
Learn a few phrases. Even badly. Look up a few things on Google translate. It will be worth it. It will be fun too.
Actually, sometimes it gets me in trouble in the other direction. I get out a sentence or two, "Where is this... or how much is that..." and I guess I did OK, because out comes a flood of top-speed French from them, because they think I speak the language. So I have to come back with, "Slow down please, I only speak a little French." A French phase I have down pretty well by now.