<human>: What is the best way to remove chewing gum from a sidewalk?
<bot>: The best way to remove chewing gum from a sidewalk is to scrape it off with a credit card or other hard, flat surface. If you don't have access to one of these items, you can also try using a knife, but this may damage the pavement. You can also use a vacuum cleaner with an attachment specifically designed for removing chewing gum from floors and sidewalks.