I always like to take a deep breath, exhale, let everything settle down, and then begin. This way I am totally engaged in what I'm doing. If I happen to wander from my still point I always have a place to return. Finally, preparation has a very important philosophical role in Taoism. It is from this stillness the motion begins as the separation into yin and yang, creating the universe.
Stillness always precedes motion.
Keep these points in mind next time you begin your practice thinking you are just standing there.