I find it funny, the difference between U.S. and UK points of view on this same thing. The methods by which you can accomplish this bit are more than abundant and much of it is found in Corinda. But as has been pointed out, film editing ruins our chances of seeing everything in proper sequence.
Fact is, there is a lot of mentalism that can be done "in the nude" as it were, free of billets and other such cheats and based solely on natural observational talent. It may take you a few years to develop such skills, but it's not impossible and what it will allow you to get away with is mind boggling.