though they will come with practice. after that, choose a character your interested, whether you like the character, or think they're fun to play, whatever the reason. and make sure you commit to that character and train hard with them so that you can imrpove.
after that, you can get a grasp on the basics of the game here: http://8wayrun.com/calibur/threads/the-basics-of-soulcalibur.15258/