Paris Hilton -- Homeless Man Drops Some Serious Game

Paris Hilton probably gets hit on all the time ... but it's rare when a homeless lays the mack down.

Paris was leaving Tao restaurant in NYC when she stopped to give some cash to a homeless guy -- and that's when the dude saw his chance to spit some game.

He kissed her. He smooth-talked her. He asked her out on a date.

And for the record ... she didn't exactly say 'No.'