I am serious.
I know that the arm out and elbow up means right turn. I doubt 75% of the drivers here know hand signals. You'd be amazed how many won't turn left on a green light without the arrow. I get so frustrated when I am behind someone in the left hand turn lane, the left green ARROW goes out but the big green light stays on, no oncoming traffic and they don't know they can go without an ARROW... I automatically assume that if I am not first in line when that happens I will be stuck there for a cycle.
So I figure I better POINT in the direction I am going to go.