Form 5: Bai He Liang Chi (White Crane Spreads Its Wings)

Keep the upper part of the body straight and centered, and spread the arms symmetrically left and right, up and down, like a white crane spreading its wings, after which the posture is named. The posture alternatively means spreading one arm and showing two arms as they rise, fall and turn.

Detailed Explanation
Lower limbs: Transfer weight onto the right leg, and take the left foot back to form into a left empty stance.
Upper limbs: Beginning with two hands poised to hold a ball, arch the right hand over the right forehead as the body turns right, and then place the left hand to the inside of the right forearm; as the body turns left place the right hand before the right forehead, palm inward, and arch the left hand via the front of the body down to the side of the left crotch, eyes looking forward.

Key Point
With the head uplifted, the waist relaxed and the crotch down, unfold hands obliquely upward and downward, or straight upward or downward as the waist turns left and right emptily or solidly, which is done in line with footwork.
This is the 5 form of tai chi kung fu, tai chi is a traditional chinese martial arts, if you also like this, read the later articles.