Christopher's isn't the only thing in that area. Well, I guess I'm emcompassing Gambrills with all the stuff at Waugh Chapel, especially Coalfire Pizza and south at the Blue Dolphin (great crab cakes).
Do what the German's do. They have something called a Radler, which is regular beer mixed half and half with a lemon lime type drink. I would suggest 7 up or Sprite. Especially tastes good on a hot summer day.