I am convinced that he had no idea then who I was, but the earnestness of my gaze seemed to disturb him.

He set down his glass with shaking fingers, and directed his companion's attention towards me.
They talked together earnestly for several moments.

I fancied that she was reproving him for showing alarm at my notice.

Very soon, however, she herself, after giving an order to a waiter, turned slightly round in her chair, and glanced with well-affected carelessness across at me.

I saw her start and look apprehensively at her companion.