For a natural look stick with a nude shade, or pick a bright hue for a more bold appearance. Start in the center of your lip, and blend the color outwards. Be sure to apply the color as close to the edges of your lips as you can without overdoing it and going outside your lip line. To prevent any lipstick from getting on your teeth, stick your index finger straight into your mouth and pull it out quickly; any excess color will stick to your finger and avoid being transferred to your teeth later on.