Does the dent just pop out?

No. The dent is lifted with a series of pushes. I start with reproducing the original shape and then go on to detail and blend in with the rest of the paint finish to make it invisible. Some large complex dents can take thousands of pushes to acheive a flawless repair. Hand to eye co-ordination must be millimetre perfect, it’s a very precise and skilled process which requires a lot of patience.