Some kind of ritual?
He moved silently, and none of the gorillas seemed to notice him. They were all moving in the same way, and it seemed like they were performing some kind of ritual.
Elliot didn’t know much about gorillas, but no matter how long he watched them, he couldn’t make sense of what they were doing.
He took some pictures with his phone, staying at a safe distance. His friends would never believe him unless he had proof!