Which technique involves directing the hair into waves using fingers and lotion?

The technique of directing the hair into waves using fingers and lotion is known as finger waving. This method is characterized by the use of the fingers to create 'S' shaped waves in the hair, which involves a systematic pattern of molding the hair into position while it is damp and often using a setting lotion to hold the shape.

Finger waving is a classic hairstyling technique that emphasizes smooth, sculpted waves and requires practice and skill to achieve the desired fluidity. The use of fingers is essential in this technique as they shape and place the hair into the waves, while the lotion provides the necessary hold and texture to maintain the style.

This contrasts with other techniques listed. Curling generally involves the use of heated tools to form curls, while twisting and pin curling have different methods and results in wave formation. Twisting involves twisting sections of hair around themselves to create a spiral formation, and pin curling involves rolling the hair in circles and pinning them to secure shape, both of which do not focus on the smooth wave effect achieved with finger waving.