Use a hair dryer to warm the dented area
Press the dent out from behind if you can reach it
Apply a plunger to the dent and pull gently
Use a vacuum cleaner with a small cup attachment
Try hot water on plastic panels, then push the dent out
Use compressed air and a quick temperature change
Tap around the dent lightly with your hand
Massage the dent from the edges toward the center
Use duct tape to pull up small shallow dents
Repeat gentle pressure until the surface evens out