How to say be nice in English?
How to say be nice ("sei nett") in German?
How to say be nice ("sois gentil") in French?
How to say be nice ("se bueno") in Spanish?
How to say be nice ("いいな") in Japanese?
How to say be nice ("sii gentile") in Italian?
How to say be nice ("착하게 굴 어라") in Korean?