Louisiana Revised Statutes Tit. 32, § 106. Methods of giving hand and arm signals

(1) Left turn--hand and arm extended horizontally, with the hand open and the back of the hand to the rear.

(2) Right turn--hand and arm extended upward at an angle of forty-five degrees from shoulder or elbow, with the hand open and the back of the hand to the rear. A bicyclist may also extend the right hand and arm horizontally with the hand open and back of the hand to the rear.

(3) Stop or decrease speed--start--hand and arm extended downward at an angle of forty-five degrees from shoulder or elbow, with the hand open and the back of the hand to the rear.

(4) Pulling from curb or side of highway--same as for left turn.