This kick can be used to strike your attackers knee or groin area.
You are squared off with your attacker in the fighting stance.
Bring your right knee up and twist anti-clockwise on the ball of your left foot. You should be sideways on to your attacker.
Now strike your attackers knee or groin. A strike to the knee is very effective if they have a leg out in front of the other.
The strike will probably cause your attacker to move their leading leg back if a strike to the knee was used. Return to your position before the strike.
Twist clockwise on the ball of your left foot and put your right foot back on the ground and return to your fighting stance.