Earlier quoted context omitted.
I always try to learn how to say, "I'm sorry, I don't speak X" in language X. When I was in Japan I got an unbelievable amount of leverage out of being able to say, "Sumi masen, Nihon-go hanasei masen" which, of course, means "I don't speak Japanese" in Japanese. The local's faces would light up and often they would respond in Japanese despite the fact that I had just told them that I don't speak Japanese.
Similarly, Excusez-moi; parlez-vous Anglais? is how you get a French person to speak English.
Seriously, don’t learn boring words, we already know someone doesn’t speak French. Learn movie quotes and you’ll kickstart a discussion. Learn awesome movie quotes and you’ll have something to discuss about.