An eye contour brush is a versatile brush that can be used to create a variety of eye makeup looks. It has a short, angled head with a tapered tip, which makes it ideal for applying eyeshadow along the lash line and in the crease of the eye. 

Here are some ideas on how to use an eye contour brush to create different eye makeup looks for every occasion:

• Daytime look: For a natural-looking daytime look, use an eye contour brush to apply a light wash of eyeshadow along the lash line and in the crease of the eye. You can use a neutral shade like brown or taupe, or you can choose a more colorful shade to add a pop of color. Blend the eyeshadow well so that it doesn't look harsh.
• Nighttime look: For a more dramatic nighttime look, use an eye contour brush to apply a darker eyeshadow along the lash line and in the crease of the eye. You can use a black or dark brown shade, or you can choose a more vibrant color like purple or green. Blend the eyeshadow well so that it creates a smoky effect.
• Smoky eye look: A smoky eye is a classic and versatile look that can be dressed up or down. To create a smoky eye, use an eye contour brush to apply a dark eyeshadow along the lash line and in the crease of the eye. Then, blend the eyeshadow outwards until it creates a diffused, smoky effect. You can add more depth to the look by applying a lighter eyeshadow on the inner corner of the eye and under the brow bone.
• Cat eye look: A cat eye is a sultry and elegant look that is perfect for special occasions. To create a cat eye, use an eye contour brush to apply a black or dark brown eyeshadow along the lash line. Then, extend the eyeshadow outward in a thin line, gradually tapering it to a point. Blend the eyeshadow well so that it creates a smooth, seamless line.
• Winged liner look: A winged liner look is another classic and glamorous option. To create a winged liner, use an eyeliner pencil or liquid eyeliner to draw a thin line along the lash line. Then, extend the line outward in a wing, gradually tapering it to a point. Fill in the wing with eyeliner, and then blend the edges with an eye contour brush.

These are just a few ideas on how to use an eye contour brush to create different eye makeup looks. With a little practice, you'll be able to create a variety of looks that are perfect for any occasion.

Here are some additional tips for using an eye contour brush:

• Start with a light touch and gradually build up the intensity of the eyeshadow. This will help you avoid applying too much eyeshadow, which can look harsh.
• Blend the eyeshadow well so that there are no harsh lines.
• Use a primer to help the eyeshadow stay in place.
• Experiment with different colors and shades of eyeshadow to find the look that you love.