My friend Stephanie, who's coming to DC for our wedding next weekend, asked me for recommendations of places to take her boyfriend in the 36 hours that she's in town. She'll be staying in Dupont so of course I recommended The Tabard Inn for a lovely drink or dinner. Since she's a healthy walk away (20 minutes or more) from Georgetown, I think an afternoon beer, glass of wine and a snack is in order at Leopold's Kafe at 33rd and M St.
It can be tough to find a seat on a warm, sunny afternoon but it's worth the wait if for nothing else than the ambiance and selection of Austrian and German beers and wines. I really think this is one of the best outdoor cafes in DC. Just look at the afternoon Sara, my Mom and I had last Sunday!