Dressing up as Wednesday Addams can be a fun and easy costume idea. Here are the basic steps to create a Wednesday Addams look:

1. Start with a black dress: Choose a black dress with a white collar that hits above the knee. Look for a simple, A-line silhouette to achieve the classic Wednesday Addams look.

2. Add black stockings: Wear black tights or knee-high stockings to complete the look.

3. Choose black shoes: Opt for black shoes, such as flats or Mary Janes, to match the dress.

4. Style your hair: Part your hair down the middle and braid each side, leaving the braids hanging over your shoulders. Alternatively, you could wear a black wig with braids.

5. Apply minimal makeup: Keep the makeup minimal with pale skin, dark eyes, and dark lips. Use a light foundation or powder to make your skin look pale, and apply black eyeliner and mascara to create a dramatic eye look. Finish with a dark lipstick, such as a deep red or plum shade.

6. Carry a prop: Add a finishing touch to your Wednesday Addams costume with a prop, such as a plastic spider, a black umbrella or the Thing hand.

With these simple steps, you can easily create a classic Wednesday Addams costume that's perfect for Halloween, costume parties, or any other dress-up occasion.