De Blasio spoke at Sharpton's Martin Luther King Jr. event in Harlem Monday.
Sadie Drucker, 22, lobbed a glass at a 29-year-old woman, who needed stitches in her mouth, police said.
More than 75 pieces of "functional glass art" are on display at 143 Ludlow St.
"I haven't smoked marijuana since I was at NYU," Mayor Bill de Blasio said.
Founders of Occupy Weed Street want to teach loner stoners the line between flirtation and harassment.
Police officers have been given the option to ticket low-level marijuana offenders.
The mayor also said he has not smoked marijuana since college.
More than 70 percent of voters approve of Bill de Blasio's new marijuana policy, a new poll found.
The 37-year-old victim's eye was badly injured in the attack, police said.
Police will issue tickets rather than arrest most people caught with 25 grams or less of marijuana.
Officers David Afanador and Tyrane Isaac were charged with assaulting Kahreem Tribble in August.
Jasmine Lawrence, 22, had a seizure in her cell and was taken to Woodhull, where she died, police said.
Clean Society Cleaners, located at 287 Grand Ave., was shut down by police last month.
Juan Pablo Duarte Square has seen a growing number of homeless men congregating in the public plaza.
Rachel Noerdlinger and her boyfriend were stopped as they drove the wrong way with a minor in their car.
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