He just chewed his lip and let the old man continue.

She saw him looking around and chewed her lower lip.

Will Henry stood in the living room chewing his lower lip.

He chewed his lip until I thought it would fall off.

He started to speak several times, but wound up chewing his lips instead.

She chewed her lower lip for a moment and then spoke.

He chewed his lower lip, feeling more like a kid than ever.

She chewed her upper lip, then looked back at me.

Several chewed their lip s. The young woman spoke up.

From the corner of his eye, he saw how she chewed her lip.