An olfactory trail follows movement
Sillage is the scented impression left behind as someone moves through a space. It differs from longevity, which concerns detectable duration, and projection around the wearer. A fragrance can leave a recognisable trail without filling an area for long; the applied amount and conditions of the setting influence this particular experience.
Assess the trail with another person’s help
Ask someone you trust what they notice after you pass through a familiar room wearing a measured amount. Their response describes a concrete situation, not an absolute property of the perfume. Adjust your application accordingly: an expressive trail may suit an evening occasion yet feel intrusive in a corridor that other people share.