Je pense que oui. Il y a beaucoup de différences entre des langues. Ils peuvent faisons le confusion en essayant de communiquer.
(Sorry if my French is wrong. It's been a while.)
I would say that language can be an obstacle to communicating well. There are differences between languages, and many problems can crop up when trying to understand someone. Someone could mishear or misinterpret a word, or a figure of speech could be mishandled. Beyond that, hand signals can only take you so far. Sign language might be an option if you both know the same dialect of signing. There are many ways people can communicate without knowing the same language, but it can be more difficult.