no haga ruido

don't make noise

→ no
phrase Rare #48,566
don't make noise A polite or formal command addressed to one person using usted. In some contexts, it can also mean “that he/she not make noise” or “that it not make noise.”
SP: Por favor, no haga ruido durante la película.
EN: Please don't make noise during the movie.

No haga ruido o tendré problemas.

Don't make noise or I'll be in trouble.

— El experimento (2001)

Por favor, no haga ruido.

Please don't make any noise.

No haga ruido.

Don't make noise.

— Parásitos (2019)

Mejor que no haga ruido.

It’s better if he/she doesn’t make any noise.