As Culligore started to cross the street, he made a curious motion with his hand, and the Phantom fancied he was signaling someone on the other side.
"The Gray Phantom's Return"
Herman Landon
None was signaling an emergency to draw him away from this; give him an excuse to leave in the hope the problem would have solved itself by the time he could get back to it.
"Eight Keys to Eden"
Mark Irvin Clifton
Dusk came, the blankets still signaling that all was well.
"Brand Blotters"
William MacLeod Raine