When you're putting your best foot forward, both literally and physically, you want to make sure your footwear is in the best condition possible. Plain and simple: polish your shoes.
1) clean your shoes. remove any dust or dirt with a damp cloth or brush.
2) ensure you're using a polish that closely matches the colour of your leather. for example, black shoes would require black polish; brown shoes require brown polish. using round brush strokes, apply a light coating of polish to the surface of both shoes. use a small brush (like an old toothbrush) to get into the tighter/hard to reach spots.
3) after about 15 minutes of rest time, brush the leather again with the shoeshine brush to remove any excess. then buff the leather to a perfect shine with a clean, dry cloth. if you don't have a dedicated buffing cloth, a clean cotton shirt or old wash cloth will do just fine.
With regular wear, you should shine and polish your shoes about once a month. In between regular wear, be sure to keep shoes clean and free of dirt or dust. You can also restore and enhance the shine by simply buffing quickly with a clean, dry cloth.