She made the professional smile, but it didn't quite work this time.

She turned with a small, highly professional smile and walked out of the office.

She gave me her best professional smile as I came through the door.

Her professional smile slipped when she saw who was standing in the hall.

Then he smiled, a professional smile that didn't reach his eyes.

She looked up at them with a bright, professional smile.

She put on her professional smile and approached the woman.

The doctor looked down at her patient and gave him a professional smile.

"No problem at all," said the man, with a professional smile.

He tried to give that professional smile of his and failed.