He turned to look at me and his brow wrinkled.

His brow wrinkled just a little, and he stared directly into the woman's eyes.

She looked up at the ceiling, her brow wrinkling in thought.

But now a thought did flicker behind those eyes, and his brow wrinkled.

He frowned, his brow wrinkling in lines that made him look old.

Her brow wrinkled, as if she was thinking hard.

His brows wrinkled in a frown; he wanted to think over that.

His brow wrinkled, looking like the grain in a weathered board left outside.

This time she listened carefully, her brow wrinkled in concentration.

He turned to the Admiral, his brow wrinkling in concentration.