To apply the bronzer, visit a dermatologist who could determine the sensitivity of your skin and may recommend you other cures too along with use of bronzer. As the bronzer is mostly applied on the skin that contains stains or spots so the skin specialist could play a vital role in this regard.
If derma suggests you the use of bronzer then must go for that bronzer which is not two time darker than the skin. It will look quite clumsy to have applied much darker bronzer.
Further, the bronzer should not be containing more than two shades as multi-shaded bronzers are never good looking. In fact the area hidden from light or sun makes an ugly impression.
If you have a fair complexion but have some stains over it due to the sun, you must go for the peach and pink bronzer. This kind of bronzer will give an idea look to your face and neck area. And if you have an olive complexion darker bronzers will be more compatible.
Chose the best bronzer for your skin e.g. if you have an oily skin go for powder based bronzer otherwise select the liquid one. Meanwhile, the selection on blushes is also very important. The only use of bronzer is not an ideal thing to go for. Cream blush could be used in this regard.
The factor of weather should never be ignored. If it is sunny weather apply light bronzer otherwise thick layer could also work.
Apply the mixture with soft brushes or with finger tips. While applying the bronzer with finger tips do not try to rub just spread it softly.