tarragon, thanks for posting the directions. I wasn’t able to respond sooner.
I’d metro to tenleytown, and exit on the West side of the street.
Take any bus that comes by to Calvert Street and hop off. It’ll just be a few more steps down from the Calvert St bus stop to Max’s. It’ll be on the same side the bus lets you off.
If you want some more neighborhood places (tourists do not typically find Glover Park neighborhood), go to Kavanaugh’s Pizza Pub (formerly Faccia Luna) for wood oven pizza. Then hit Max’s for desset. Across the street, there will probably be a softball game under the lights at Guy Mason park. The restaurant, the ice-cream, the game, all creates a very small town feel, just a half mile or so from Georgetown.