[Gamzee's wandering up and down the train, merrily greeting anyone he knows and a whole bunch of people he doesn't, or only vaguely remembers. He also is handing out little twists of brightly colored paper to most everyone he meets. They're hand decorated, with his odd drawings of clowns, or moons and stars, or more abstract patterns, and if untwisted, they will be found to contain a small cache of dried herbs of some type.

So, they're not drugs, there are teachers on this train, and even Gamzee isn't that dumb. But they do smell nice! Care to ask him to explain?]