From the BBC Live Webcast:

0036: Just looking at shots of David and Samantha Cameron going into a pub in the Tory leader’s constituency of Witney in Oxfordshire. They’re heading to the count later, but he obviously fancies a pint first. He’s said before that Guinness is his tipple of choice

UPDATE: The Wall Street Journal has a picture.  It is number 5 in the slide-show