YOU SAID:

Wow, you are speaking japanese, it's cool!

INTO JAPANESE

うわー、あなたは日本語を話している、それはクールだ！

BACK INTO ENGLISH

Wow, you speak Japanese, it's cool!

INTO JAPANESE

うわー、あなたは日本語を話します、それはかっこいいです！

BACK INTO ENGLISH

Wow, you speak Japanese, it's cool!