THIS IS HOW YOU TREAT A FAN

Chad Ochocinco took one lucky Patriots fan out to dinner. Will Ditullo a die-hard Pats supporter who built a friendship with Ochocinco through Chad's iPhone app.

After learning that Will recently lost his mother to diabetes ... Ochocinco made an effort to connect with the guy in Boston before the game.
We're told the two met up at a fancy restaurant near the Bengals' hotel in Boston -- and Will had the "night of his life" ... in which the two talked about everything from sports to how he coped with his mother's death.
Of course Chad picked up the bill.

VIA: TMZ

-AL