Well, this is an American site, and Americans can communicate in any language as long as it's English.

French is one of the most difficult Western languages to master, so keep that in mind. Think a year of formal study.

Even for Germany, the visa office typically gives you a German language test that requires you to speak the language well.

If you're one of those people that thinks "I'll pick up a new language on the airplane", you're in for a rude awakening.