How To Get A Perfect Score On The SAT Or ACT?

I have spoken to a few people who have received perfect scores on the ACT and the SAT.
Obviously, these are very bright young people.
Interestingly, they seem to approach the exam with a sense of curiosity.
In addition they seem to be looking at these tests as a challenge and they are not intimidated by the pressure. It seems that they did not focus on the pressure at all.
Rather, they focused on the material and the task at hand.