Clean the dented area with soap and water
Use a hair dryer to warm the dent for 30 to 60 seconds
Spray compressed air upside down on the warmed dent
Apply a plunger to the dent and pull gently
Use a dent puller kit with glue tabs
Push the dent out from behind the panel if accessible
Use hot water on plastic bumpers, then push the dent out
Tap the dent lightly with a rubber mallet from behind
Use a vacuum cleaner with a small cup attachment
Take the car to a professional dent repair shop