The taking of the fingerprints can be done in less than five minutes. They might want to take your DNA as well--which possibly can be a swab of your cheeks or nostrils. That also can be done in less than five minutes. Setting up the fingerprint database to identify the prints as being yours may take more than five minutes. And, the capsule that holds your DNA swap will need a name label also. You won't need good luck, or anything else, except bring a positive attitude with you.