How about we… play a competitive game of Scrabble at a cafe -- loser buys shots of espresso (or any other kind of shot).
How about we… go to a farmer's market and then cook dinner.
How about we… dress up in Halloween costumes and hand out candy.
An awesome place I've visited:
Minneapolis/St. Paul MN! It's a much cooler place than it sounds - the Mall of America is just the start!