Hair lesson we can learn from this year's Oscars: Something as simple as a change of the part of your hair can give you amazingly different looks. Just check out Rose Byrne's chic blunt bob.

That impeccably sleek shape and those flirty eye-skimming bangs were earlier spotted at the recent 2012 Screen Actors Guild Awards (inset), when Byrne wore her bob Michelle-Pfeiffer-from-Scarface-meets-Anna-Wintour style.

At the Oscars (left), she switched to a side part for an uber-glamorous take on the bob. Voila!

We always think of hair makeovers as something major -- like changing the color or length of our hair, or cutting the bangs. But just wearing your hair in a new way instantly updates your look. So don't be afraid to get experimental -- try center, off-center, side, diagonal, even zig-zag parts.