Street art uses memes and culture jamming techniques to subvert mainstream institutions and messages. Memes can entertain, educate, and manipulate viewers. Artists like Shepard Fairey use replicated images to spread ideas like OBEY. JR's Inside Out Project challenges people to share portraits from around the world to tell untold stories. Banksy argues that companies deface neighborhoods with advertising but citizens cannot respond, so street art provides a way to answer back.