Some of you need to cool down a bit here, seriously. I know that practice is what makes perfect, but starting with a good tip also helps. I would say that you should try riding along, and jumping off the deck of your scooter without taking it off the ground, and do the motion of a tailwhip (kick the air with your foot and catch with the other, etc.) and try your hardest to keep your body straight so as to land on the deck the same way that you started. Once you get that good, try doing the whole tailwhip, and then just concentrate on what you are doing wrong and try and improve it. What can I say, practice makes perfect! What some people also do to learn tailwhips is to lie on your back out in your yard or something, and do 'upside down tailwhips' until you get all the movements nice and smooth. Hope this helped!