When most people set up their sparring posture and start to move whilst facing an opponent quite often the movement is subdued.
My suggestion is to make it a tad chaotic this can help hide any footwork that you want to use to set up a technique. Have a listen and I'll try and explain it better.

As always I thrive on your feedback and suggestions if you want to get hold of me sending an e-mail, scott@pollets.com.au, FB, Shihan Scott Boyd
My New podcast web page is
http://karate_tips_and_tricks.libsyn.com/