guess somebody's identity

All but one: a dull red sun whose identity I could guess.

Enough so that he'd been able to guess her identity.

He guessed her identity and called her in the middle of the night, very upset.

Do you really think you can guess my identity this way?

Readers can at least have fun guessing the author's identity, if they are not reading the news for the first time.

The man's face is hidden behind a hood, leaving Esmeralda to guess his identity.

I was instructed to taste each and guess its identity.

No, but it is not difficult to guess your identity.

"Certainly," said Acbed, though most of us had already guessed her identity.

Yet any crook would have guessed his identity, once having heard of him.