Kristen Stewart has been smoking cigarettes since she was in High School. She claims to be a casual smoker (circumstantial smoker), and insists she's not a nicotine addict. Unlike her counterpart Robert Pattinson, she hasn't really tried to quit. The weird thing is that the media seems to make a huge deal whenever she's spotted having smoke. They seem to think that she "fell off the bandwagon" or something, but Kristen Stewart never actually said she wanted to quit.