S.F. buildings use Post-its to send messages, play hangman, call #SFPostIt the newest social media

At least four downtown San Francisco buildings made the most of their Friday by sending out Post-it messages to neighbors. The participants, in buildings on Second Street between Mission and Market, played hangman, created characters such as Hello Kitty and Pac-Man, and wrote messages such as “We r hungover,” “hire us” and #sfpostit. It appears […]