How to use "signs" in a sentence

"Please, sit down," Edward says with a smile that shows early signs of infatuation.

"That's our name for everyone who signs up," said Leti

Hundred-foot-long signs-five - hundred-foot-long signs - towered five or even ten stories above the street, glittering, winking, thousands of miles of bright glass tubing filled with glowing gas, blinking, swirling, hundreds of thousands of bulbs, spelling out hotel names, forming pictures with light

In waves of dazzling color, millions of lights winked on in the enormous signs

The boy's vital signs were undetectable to the medical technology of that era

"First of all," Elliot said, "before he went into the mountains with Jaborski, in all the years you knew him and lived in the same house with him, did Danny ever show any signs of being psychic?"

"Check out his vital signs."

They passed a few signs that told them the lane they were using was kept open for the exclusive benefit of federal and state wildlife officers and researchers

Only authorized vehicles were permitted, the signs warned.

There were signs of people in the next house on Sunday evening - a face at a window and moving lights, and later the closing of a door

Here too, there were signs of quick departure

All this time I saw no human beings and no signs of the Martians

'If your wife signs the document, everything will be all right