At first, the machine fails miserably, and leaving Neugog merely guessing at what the board member was thinking.

Even then, or merely guessing at which way the wind might blow had them to jump.

After all, she was merely guessing that Caliban had gone off on his own.

Did she merely guess it, or had she actually read the letters which passed between them?

Even now I do not know, I merely guessed.

The state of this folk, of whom I saw so little, I can merely guess at.

Merely guessing something right does not necessarily demonstrate prior knowledge or a correct theory.

But she quickly discovered that he was merely guessing at the words.

This means that many decision makers - at banks, in government and on Wall Street - are merely guessing at the risk components they can't see.

He could merely guess at her own wrenching pain.