He might have been hidden by the milling crowd below.
Someone in the milling crowd caught sight of him and a shout went up.
A young man suddenly bent over in the milling crowd waiting for a bus after school.
The scientist jumped out and made his way through the milling crowd.
"This space seems made for the exhibit," he said, looking about at the milling crowd.
Together they walked back through the milling crowd and out of the courtroom.
He moved out of the little space by the hallway and into the milling crowd.
Without saying a word they waded into the milling crowd.
He turned and walked off through the milling crowd without waiting for the answer.
"Higher taxes will be the death of me," complained a voice in the milling crowd.