First you have to meditate for about 10 minutes, but the longer you meditate the better. Next visualuze air molecules, which carry human speech, all around you. I usually visualize it as the static on the TV. When you change it to a channel, it does not carry. Anyway visualize it all around you, now feel it, don't just see it. Now here is the fun part. Gather the air molecules into a ball in your hand, pick your target, and blast away. Don't blast towards glass; it has the same effect as a high-pitched sound. Sonokinesis is the ability to manipulate sound, if you learn this kinetic, you have to be careful of other people around you because sonokinesis can make someone or yourself deaf in just one blow of sound.