The Correct Way to Put on a Suit Jacket Many people make the mistake of trying to put on a suit jacket by inserting one arm completely and then struggling to get the other one in, or even raising one arm and making awkward poses. This is not the right method. The proper way is much simpler and smoother. First, insert half of your hand into the sleeve, but keep your hand down, without raising it. Then, do the same with the other hand, inserting it in a controlled manner and keeping it down as wel