It's the cutest way to look polished in a millisecond and there are about a billion other things we can learn from Lea Seydoux's look here.
Take a neutral dress.
Make it super interesting with jacquard, contrasting pockets and a Peter Pan collar.
Wear neon bright pink pointy heels.
Make up your face in soft, pretty tones.
Pop your lips by painting them bright pink, and match your nails as well.
What you end up with is the freshest way to say "I'm here" that we've seen for aaaages. Subtle, but such zing!
Moral of the outfit: Don't underestimate the power of a shoe. Or a lip. Or a nail. Love it.