When identifying a Louis XV chair, it is important to note several key characteristics. These include the overall silhouette of the chair, which is often characterized by curving lines and an intricate design; the presence of cabriole legs, which are legs that curve outward at the top; and ornate details such as carved wood or upholstered fabric. Additionally, many Louis XV chairs feature a low seat back and arms that extend outwards from the body of the chair.