The doors open, you go up the ramp, announce to the world (driver) where you’re going.
You then decide if you’re going to interact online as in on your mobile phone or liaise with others on the train.
This is pretty much a regular experience for people with disabilities when getting a train.
So we talk about Facebook as way to keep in touch, don’t underestimate the amount of “keeping in contact” that happens on the train.
Cheryl (below) school friend that I have known for over 40 years & have maintained a friendship via the train