être tranquille
Tell them to be quiet so the players can think and if they still won't be quiet ask them to leave.
Because the people that are playing needs silence to concentrate on playing.
"Be quiet" in French is spelled "se taire."
The French word for quiet is "calme."
'Keep quiet' is translated 'tiens-toi tranquille' in French.
Golf, tennis, snooker
silencieux
To say "you are quiet" in French, you would say "tu es calme."
You are quiet is 'tu es tranquille / tu es calme' in French.
Quiet Music for Quiet People was created in 2006.
The correct spelling is "quiet" (silent, or hushed).
There are lots but they are all keeping quiet about it, certainly the famous ones are.