Go-Lo's on H Street near 6th St. is now Wok & Roll or something like that. Historic note: 140 years ago it was a boarding house run by Mary Surratt, and the Lincoln assassination conspirators met there.
I peeked inside & saw a bar set up in front, listing a bunch of different teas & chais, different flavors, also the option of adding tapioca beads, which means bubble shakes.
This is for those asking several weeks ago where you could get such tapioca drinks.
Teaism at 8th & D also has them, but only 1 flavor I think...