Fragrance is best applied before you dress. You can mist a larger area of skin and avoid staining your clothes. Fragrance will last longer if it has something to cling to. This means skin that has just been moisturized will hold a scent longer. Some components of fragrances increase photosensitivity.
Scents smell stronger when warm.
Mixing scents is not a good idea. Don't knock your entire family into the next room. If you want a very light application of fragrance, bathe with a scented bath product or use a scented body lotion after your shower. Don't choose a scent based on what it smells like on another person. Because two people never have the same body chemistry, the same scent may not smell as good on you as it does on your friend.