Sensory marketing uses techniques that appeal to consumers' senses like sight, sound, smell, taste and touch to influence their feelings and behaviors. It evolved from visual branding in the 1950s-1970s to also incorporate auditory, olfactory, gustative and tactile elements. Dan Hill's 10 rules for effective sensory marketing include keeping messages simple, relevant, hopeful, believable, and memorable while being sensitive to differences in how genders perceive sensory cues.