For Japs
Konnichiwa = good afternoon
Ohayou = good Morning
Konbanwa = good evening
Genki Desuka= how are you
Watakushi wa Sauji Arabia jin desu = I am from Saudi Arabia
Arigatou= Thank you

(( I wonder if they are girls...!!))

For Chinese
Ni Haw = Hello
Sheh sheh = Thank you

For Thai ...I do not know ...I forgot