The smaller figure that had been hidden behind Batman now stepped forward, a polite expression of interest on her face.

She was trying to breathe evenly; maintain a polite but none-too-interested expression.

Mykel managed to keep a polite expression on his face.

Morgan was careful to screen his impatience behind a polite, attentive expression.

He wore a polite expression and gave a slight bow.

The regular customers wore polite but bemused expressions at the 30-minute wait for the ribs.

Peter could sense her curiosity even though she maintained a polite expression.

And, yes, 'worn thin' is a very polite expression for my current mood.

The leos had expressions so carefully polite they were almost alarming.

There was the sound of chairs being pushed back, polite expressions, a door closing.