The best spots to apply a perfume are your pulse points: the points that are warm and moist because your veins are closest to the skin on those places. Where you apply a perfume will have an impact on how you and others experience it.
If your goal is to smell the perfume yourself, apply it to the pulse points that are closest to your nose, like your neck, chin and collarbones.
Applying it on your wrists and inner elbows allows you to sniff your perfume whenever you feel like it.
If you want to smell good for your beloved, apply it on your chest, shoulder blades, below and on top of your ears, and why not, your
belly button.
If you like to leave ‘sillage’ (a scent trail) for others around you, then the back of your neck and the inside of your knees are good spots.