Quote: ". The first time he takes the paper and claims his "magic powers" aren't working that well etc and rips up the paper."
He actually asks if they printed the name. If they say no, he tells them they were meant to, if they say yes, he tells them they were meant to handwrite it. Either way, they basically achieve the same thing.
By the way, the main technique used in sleight of hand and street magicians is misdirection. A lot of magicians will mislead the audience by keeping their attention on one thing whilst performing the trick elsewhere. For example, in the first video, he holds the egg up high in his hand, everyones watching him crush the egg whilst his other hand is free to retrieve the bird from wherever it's concealed and then bring it up and let it go near the egg. It's hard to pull off because you need to be very convincing but good magicians can do it well.
"Computers are useless, they can only give you answers."