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i can speak French, Chinese, Spanish. So let me start with : 

Bonne soiree, comment ca va?(good evening, how are you?)
Wan shang hao, ni hao ma? (same in Chinese)
Buenas noches, como estas? (ibid in Spanish)

Your turn.

No fair! I call for BSL and Makaton :P

Bonjour, Je M'appele Katos.
Kon'nichiwa, genkidesuka? (might be wrong a little.)

Wow, that is pretty awesome. I can only speak English and a little bit of Spanish, but I am not very strong at it.