The document discusses four strategies for changing or influencing consumer attitudes towards brands or attributes: 1) Increasing the perceived importance of an existing attribute, as Maruti did with the Swift's speed. 2) Changing perceptions of an attribute's importance, like Fevicol did with its "chutki mein chipkaye" slogan. 3) Adding a new attribute to influence evaluations, as Apple did with the iPhone 4G. 4) Altering perceptions of a competitor's brand by comparative advertising, as seen in Sprite's ads against Mountain Dew.