Japanese phrase
少し静かにお願いします。 suko shi shizu ka ni o nega i shi ma su
Meaning
Please be a little quieter.
When to use it
A polite request for a little less noise. It sounds gentle but clearly asks someone to lower their voice or reduce a disturbance.
Example dialogue
すみません、少し静かにお願いします。 su mi ma se n suko shi shizu ka ni o nega i shi ma su
Excuse me, please be a little quieter.
あ、すみません。気をつけます。 a su mi ma se n ki o tsu ke ma su
Oh, sorry. I will be more careful.