the sack, letting it attach and lift more and more of the gum out. gently pick at the rest of the gum, removing as much as possible from the carpet without pulling too hard on the carpet fibers. again, once you have removed as much as possible, rinse with a small amount of soap to get rid of the remaining residue.
a lot of times, a combination of heating and freezing will work best. start with freezing and break away as much as possible. after that, heat the gum and blot it up with your cloth or paper bag. you can repeat these steps as necessary as long as you are 