There are two people on the platform opposite. The man on the left, wearing dark clothes, was setting up a camera on a tripod. The man on the right, wearing light clothes, seemed to be talking to him.
The second man stepped away to the railings at the top of the ramp, while the first man hurried down the ramp. The first man ran up again, as if being chased. He paused at the top, and the second man put his hand on the first man's shoulder, as if nabbing him. They held that position for a moment, then broke apart.