Since perfume engulfs you, it is worn like a cloak. So you apply some perfume to your wrist or elsewhere on your body, and from then on you wear it.
Heat is what activates perfume. The pulse points on your body (where your heart rate can be felt) are the best spots to apply a scent, due to the warmth of your blood. Some such points are located behind your ear, at the bottom of your throat, on your wrist, inside your elbow, and behind your knee.