The first step is a pretty obvious one; you need to place the ball on the kickoff tee. Easy enough, right? When you set it up on the tee, you want to make sure that the ball is relatively straight up and down; you do not want much of an incline. If you have the ball straight up, there is a better chance that you will get height on your kick as well as distance. If you set the ball down with an incline, you may get more power behind the kick, but the kick will end up being a line drive, which may be fine for a field goal, but on a kickoff you want more of a loft. There should not be much of a problem getting the ball to stay unless there is a strong wind.
The second step is to take your steps, which you should have prepared before you go to do the actual kickoff. Starting with your plant foot next to the ball, take a certain amount of steps back and to a side so that you can feel comfortable and build up power approaching the ball. Personally, being a lefty I choose to take nine steps back and 5 steps to the right. A righty should obviously be taking their steps to the left after the steps back. The steps you will be taking are not normal walking steps; you want to extend your strides for the steps a little because when you approach the ball you will almost be at a run, which are longer strides than walking. Once you think you have the right steps for you, make sure that you can approach the ball with your steps intact. Meaning you can approach the ball fluidly and have your steps end with your plant foot right beside the ball.
Once you have your steps ready and you are back waiting to kick, you become the coach of the field. It is your responsibility to look around at your teammates on the field and address anything that needs to be corrected. The third step of a kickoff is to make sure everyone is in the right place and your team is ready for the kick. Examples of this could be making sure that everyone on your kick off team is onsides, making sure you have the correct amount of people on the field, and making sure everyone is on the side of the field that they are supposed to be on (to the left and right of you). Failing to recognize any of these could lead to a penalty against your team, and needless to say this is not the goal. The final part of this process is somewhat optional, some teams do it and some do not, but when everyone is lined up and appears to be ready, you will look to your right and scream "ready on the right?" and then look to your left and scream "ready on the left?", this lets them know that it is show time.