If you want to dress up as an impressive wicked witch, it's going to take more than simply donning a costume. You really must become the character through make-up, clothing and mannerisms. The clothing and mannerisms may be easy enough, but it's the make-up that's the real challenge. Adding a prosthetic, like a witch nose, can have a dramatic effect. Applying your witch make-up well is important if you want to make a lasting impression.
Wash your face with soap and water. Use a towel to completely dry your face. The witch nose will have more difficulty sticking to your skin if it's wet.
Apply a thin layer of spirit gum to the inside edge of the witch nose. Place the witch nose over the top of your own nose and hold it in place for a full minute. This allows the spirit gum enough time to stick to your skin. Wait another five minutes before you move on to the next step.
Brush on liquid latex where the edge of the witch nose meets your skin. You want to blend in the line as much as possible. This may take a bit of patience to get it just right. Allow the liquid latex to dry completely.
Apply green make-up to your entire face. Go back and add shades of grey in places like your cheekbones, under your eyes and along the lines of your nose. Blend this make-up well to prevent solid lines. You want to go for softer lines and shading to get the most realistic look.
Add a mole to the witch nose to complete the look. Simply glue a store-bought witch's mole onto your witch nose.