Fragrance sits differently on every skin, but a few habits make almost any eau de parfum last longer. Start with clean, slightly damp skin - a fresh spritz has more to hold onto than skin covered in the previous day's lotion or sunscreen.
Aim for pulse points that stay warm through the day: the inside of the wrists, the base of the throat, and behind the ears. Heat is what releases a fragrance's notes, so the warmer the spot, the longer it keeps unfolding.
Resist the urge to rub your wrists together after spraying. Friction breaks down the top notes before they've had a chance to settle, which is often why a scent seems to disappear within the hour. A light touch, or none at all, lets it develop the way it was designed to.