List one of the primary duties of a barber during a haircut.

A fundamental duty of a barber during a haircut is to consult with the client about their desired hairstyles. This consultation is crucial as it establishes clear communication between the barber and the client, ensuring that the barber understands the client’s preferences and desired look. This involves discussing the length, style, and any specific techniques the client would like applied during the haircut. By engaging in this dialogue, the barber can tailor the haircut to meet the client's expectations, leading to higher satisfaction with the service provided.

Although washing the hair, applying hair coloring products, and performing scalp massages are also important tasks within a barber's scope of practice, they are not primary responsibilities during the haircut itself. The consultation sets the foundation for the entire service, making it an essential duty in delivering a successful haircut.