Perceptual theorists regard persuasion as altering the person’s perception of any item of his attitudes. Perceptual methods also relaxation on evidence the receiver’s preconceptions are not less than as important since the concept content in deciding what is going to be understood. The technique stresses attention and comprehension. Roderique-Davies (2009) https://www.youtube.com/watch?v=8TsidOF0he0