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"This is a great way to highlight your personality," says Veronica Etro, head of Etro womenswear design. Her tips to make the look work? Pair a bold, decorative pattern, such as loud florals, with a geometric one, like clean polka dots, that's smaller in scale, so they're not competing for attention too much. For combinations that click, choose separates in complementary colors and the same tonal family.