Show SIGGNALS ON TURNING OR STOPPING. No person shall turn a vehicle from a direct course upon a highway high-way unless and until such movement move-ment can be made with reasonable safety. Signals given in the following Manner 1. Left turn. Hand and arm extended ex-tended horizontally. 2. Right turn. Hand and arm extended ex-tended upward. 3. Decrease or stop speed. Hand and arm extended downward. Duration of Signal A signal of intention to turn right or left shall be given coMiivJB uously during not less than tile last 100 feet traveled by the ve-hicle ve-hicle before turning. |