i think in that situation – i’d have to see how i felt on the day.
on a bad day, i’d be looking for quiet so i’d look for a different seat elsewhere. on a good day, it’s more likely to be non-committal small talk. cos sometimes company is nice, even if it just small talk.
i’d be just as happy sitting on my own though, getting lost in my own thoughts…i prefer being a loner, because the majority of the time people will let you down. at least you aren’t going to let yourself down at the last minute.
‘oh…is that the time? i better go get my train’
‘…you’re on a train’
‘yeah….'(i wander away hoping that that bizarre break in the conversation has thrown them off pursuing any further chat)