Final answer:
Contouring and highlighting is the technique used to create a longer look on a round face.
Step-by-step explanation:
To create a longer look on a round face, the technique that would be used is contouring and highlighting. Contouring involves using a darker shade of makeup to create shadows and define certain areas of the face, while highlighting involves using a lighter shade of makeup to bring forward and enhance other areas. By strategically contouring and highlighting the face, you can create the illusion of length and shape.
For example, by contouring the sides of the face along the hairline and jawline, and highlighting the center of the forehead and chin, you can create a more elongated appearance. This technique can be applied using makeup products like powders, creams, or liquids.
Other options listed, such as wearing oversized accessories, center-parted hairstyles, and dark lipstick, do not directly create a longer look on a round face but can enhance overall style and appearance in different ways.