4 ms·Trying to make eye contact with and smile at strangers on BART definitely is.by twtw 8y agoTrying to make eye contact with and smile at strangers on BART definitely is.virmundi 8y agoThanks for the info. Yet another reason to not go back to California.twtw 8y agoI haven't been on any public transit where this would be seen as normal. I'm very curious in what region smiling at randos during a commute is typical.ArrayList 8y agoYes. One should never smile - very much not a human thing to do. Thanks, twtw.nsomaru 8y agoAnd yet this happens all the time on Indian trains! Smile replaced with head bobble :)