no te fíes de

don't trust

→ no
phrase Rare #34,350
don't trust An informal negative command addressed to one person. The verb fiarse de means “to trust” or “to rely on,” and is followed by a person or thing.
SP: No te fíes de las apariencias.
EN: Don't trust appearances.

No te fíes de su ayuda.

Don't rely on his help.

No te fíes de la fotos.

Don't rely on the photos.

— Audition (2000)

No te fíes de todo lo que te digan.

Don't believe everything you're told.

No te fíes de nadie.

Don't trust anyone.

No te fíes de todas las viejas de la calle.

Don't trust all the old women on the street.

— Volver (2006)

No te fíes de lo que diga.

Don't trust what he says.

No te fíes de él.

Don't trust him.