Derek Shook/Splash News Online
May 22, 2012 10:40 AM

Ashley Olsen is known for many things: her acting career, her clothing line with twin sister Mary-Kate, her boho fashion sense. Not on the list? Showing some skin – or smiling.

But there’s nothing like a Hawaiian vacation to turn that around.

Normally reserved in both her fashion sense and her facial expressions, Olsen, 25, let loose while on holiday, grinning in the surf in a printed bikini top and black bottoms.

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The actress and fashion designer (and one of Vogue‘s best dressed) was photographed taking a dip in the Pacific and even smiling broadly for photographers last week.

Aloha, Ashley!

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