I suggest you try it regularly, when seeing magic. Turn on your layman mode! What is that you ask? Well simply forget all you know about actual methods and magic. All you know about it comes from movies and what others tell you.
Then look at this:
and perhaps this:
Did you get it? If you are smart it means you got it. If you are a dumb retard let me spell it out for you.
IT'S IN THE SLEEVES!
Let's switch into magician mode. Of course it is not in the sleeves. The method is different in each case, but switching back to layman mode: Of course it is in the sleeves. Why else are they down. If he wouldn't put it in the sleeves, the sleeves would be all the way up to show that the sleeves are not used.