If you’re tired of those solitary less-than Happy Hours that involve you, Mr. Sam Adams, and someone else’s copy of the Post, here’s a gang of souls intent on bringing commuters together: Beer Train Friday.

“We’re just a small group of train commuters that enjoy a cold one at the end of a long workweek and even longer commute,” says the copy on beertrainfriday.com. (Sounds like a scene for Mr. Big Jokey Guy!)

The way it works is, when Friday rolls around, bring your hooch to the back of the train on the New Haven Line, and bask in all the bonhomie one man (or woman) can stomach for the next hour or so.

“Our purpose is simple - on Friday, the rear of the train is Happy Hour!” says BeerTrainFriday.com. “No matter where you are, what country you’re in or what language you speak, the rear of the train is a place to meet new people, imbibe, kick back and tell outrageous stories.”

One deduces that, should you be caught in the rear car and not find yourself in the mood to hoist a few with a few with a car full of strangers, simply move to any other part of the train to reclaim your splendid isolation.