Matthew McConaughey is talking like a native while vacationing on the Brazilian coast. At dinner with a dozen pals including girlfriend Camila Alves and Brazilian singer Bebel Gilberto, McConaughey introduced himself as “Matheus” — the Portuguese spelling of his name — to several women who approached him on his way back from the bar.

PHOTOS: MATTHEW MCCONAUGHEY

The perpetually shirtless star, who we’re told was fully dressed for the meal, turned down their requests for pictures, but shook their hands and kissed them on the cheek. His rep declined to comment.