§ 29-193. Method of giving hand-and-arm signal.
All signals required by this article to be given by hand and arm shall be given from the left side of the vehicle in the following manner and such signals shall indicate as follows:
(a)
Left turn: Hand and arm extended horizontally.
(b)
Right turn: Hand and arm extended upward.
(c)
Stop or decrease speed: Hand and arm extended downward.
State law reference
Similar provisions, V.T.C.A., Transportation Code § 545.106.