I'm not sure where these tips came from, but I thought I'd pass them on because they're good ones for the practice of Baguazhang.
1. Keep the head upright and neck straight (but not tense) with spirit and intention.
2. Keep the back rounded, stretched and natural, not stiff.
3. Keep the shoulders relaxed and dropped (so power can reach the hands).
4. Keep the arms closed inward -- front arm bent and extended; rear arm protects the body.
5. Drop the elbows. The role of elbows is to protect within attack.
6. Palms - the thumb is spread outward, fingers extended and fanned as if holding a teacup. The tiger's mouth is round and separated.
7. Waist is like an axle - hardness and softness exist together. There is twisting and turning with strength and agility.
8. Keep the hips under the body - don't let them protrude. Relax the lower back.
9. The front thigh leads the way and the rear thigh supports. Knees are kept together and both thighs protect the crotch.
10. The inner foot (the one closest to the center of the circle) goes along straight lines. The outer foot turns slightly inward as you walk.