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no te hagas el

don't pretend to be

→ no
phrase Rare #23,464
don't pretend to be Used to tell someone not to act as though they are a certain kind of person or in a certain situation. The article and adjective change with gender: no te hagas la tonta, no te hagas el listo. It is followed by a noun or adjective, such as inocente, listo, muerto, or tonta.
SP: No te hagas el sorprendido; ya lo sabías.
EN: Don't pretend to be surprised; you already knew.

No te hagas el inocente.

Don't play innocent.

No te hagas el listo.

Don't be a smartass.

— Astérix y Obélix: Misión Cleopatra (2002)

No te hagas el tonto.

Don't play dumb.

— Nadie sabe (2004)

No te hagas el muerto.

Don't play dead.

No te hagas el listo conmigo, ¿está bien?

Don't try to be a smartass with me, okay?

— Kal Ho Naa Ho (2003)

No te hagas el sorprendido, hace tiempo que se sabe.

Don't act surprised, it's been known for a while.

— Control (2007)

Y tú no te hagas el simpático.

And don’t play nice.

— El castillo ambulante (2004)

No te hagas el modesto.

Don't play modest.

No te hagas el vivo, muchacho.

Don't act smart, kid.

— Amores perros (2000)