The experiment is a success.

Jasmine sat watching as the commands she gave passed around the train car fairly swiftly. Strangely, on at least a dozen different occasions the person looked at her before moving off to someone else. It seemed that several people felt that she was the most attractive person on the train. As Jasmine watched the train of people become life-long nudists, she began to feel a stirring in her groin. She started to wonder if it might be possible to address a command to a group of people. Since the command would need to be implanted in the person's head she didn't think it possible to pass it any other way than she had already passed commands.

"Do you think I could connect the chain to more than one person at a time?", Jasmine asked Feng.
"Now that would be most interesting, Young one. Why do you ask?"
"I wanted to see if I could modify all these people at once as it would be vastly faster than simply waiting for the command to spread from person to person."
"It is certainly an interesting idea."
Jasmine sat in thought a moment before she "spoke" to Feng. "I could also try something else that just came to mind."
"And what might that be, Child", Feng asked intrigued.
"What if I made the command a sort of viral thing? Do you suppose it would pass from person to person like a cold? Or would it simply 'die' in the person I put it in?"
"I cannot tell you such things, Little One. You know..."
"Yeah, yeah, yeah. No hints, I know", Jasmine interrupted. Feng laughed hardily in her mind. Jasmine glared at him in her head before she made her decision.