A wearable human-machine interface may include a support element to attach to a skin area of a human or animal body, a flexible layer, with magnetic properties, attached to the support element on the face facing the skin area so as to contact the surface of the skin area, the flexible layer having a flexibility configured to follow deformations of the surface of the skin area, and the magnetic properties of the flexible layer configured such that a deformation of the surface of the skin area leads to a measurable change in the magnetic properties, a detection unit to measure changes in the magnetic properties of the flexible layer, and a processing unit to carry out an algorithm that assigns the measured change in the magnetic properties to a configuration, movement and/or intensity thereof. A method is also disclosed which can be carried out using the human-machine interface.