Lauren Conrad's Summer Style Secrets

The fashion writer – and this month's PEOPLE StyleWatch cover girl! – fills in the blanks on how she achieves her easy-breezy, California-cute style

WHEN I WANT TO LOOK SEXY...

"I wear my highest heels," says Lauren Conrad of her go-to, leg-lengthening accessory. And if they are going to be sky-high, they may as well be luxe – like these 4-inch Yves Saint Laurent sandals.