I assume she is not interested. But this sounds like some real AFC stuff. You expect her to step into her masculine, take the lead, initiate and meet a random guy on the train? In the movies - maybe, but the real world is different. You would have more luck "accidentally" spilling your coffee at her. (please don't, lol)
Maybe I should scratch what I said earlier. I'm leaning towards the school of "gentlemen / quality men, don't approach women, only the jerk guys do."That was a pathetic attempt at trying to get approached. You should stick with hanging out on your porch with Pokemon dolls, and hope some chick passing by is impressed by them.
At least in large racially segregated cities like Chicago. Here, I almost never seen White men approach White women. In Chicago beaches, you see a lot of Black men approaching Hispanic girls, and Hispanic men approaching White women.
If she gave me some signals or IOIs then I would approach her. For the White college girl sitting on the train.