Comedian Drew Carey doesn’t joke when it comes to tipping his bartender - even at a party with an open bar. During a celebration for the CBS upfronts at the Meatpacking District eatery STK last Wednesday, witnesses saw Carey “give the bartender a $100 tip every time he ordered an Amstel Light.” He then told the bartender, “If anyone tips more than me, let me know . . . I’ll beat it.” Evidently, other guests, like Katie Couric and Les Moonves, weren’t much competition.