Tell your friends a lie; if he keeps it secret tell him the truth.
More Portuguese Proverbs:
A barking dog was never a good hunter.Portuguese
The worth of a thing is what it will bring.
Portuguese
Give orders, and do no more, and nothing will be done.
Portuguese
The son-in-law's sack is never full.
Portuguese
He loves well who never forgets.
Portuguese
Never poke a jaguar with a short stick.
Portuguese