telltale

Letty nodded without looking at him; there was a telltale quivering in her face.

He had stolen the telltale agreement too and now held all the cards—all of them.

He had found the trail again, a telltale footprint with the patched sole.

Had he been looking at her he would have seen the telltale color tide her cheeks.

At this point, the wide, old boards of the floor gave a telltale snap.

There in the glass was that fatal, telltale white precipitate.

Into her cool cheek crept a tinge of rebellious, telltale colour.

The man and boy, and the telltale dog, jumped to their feet.

In this instance my telltale suspicion had not been at fault.

You never can tell when Jeremiah is snooping about, and he's a telltale.