@ San Fransisco City Hall, 1 Dr. Carlton Goodlett Place, Rm 284. Supervisor Rafael Mandelman welcomes artist Jun Yang whose art is currently on display. 4-5pm. mandelmanstaff@sfgov.org

@ San Francisco SPCA, 201 Alabama Street. Celebrating 150 years of serving San Francisco’s animals and the people who love them, the day will include cuddle lounges, costume contsts, yoga with cats, paint your pet and more activities for all ages. 10am-3pm. http://www.sfspca.org

@ All Saints Episcopal Church, 911 Dowling Blvd, San Leandro. Organized by Lavender Seniors, the event includes a buffet lunch followed by announcements and a program. Bring a dish to share if you wish. Noon-2pm. http://www.lavenderseniors.org

@ Beaux, 2344 Market Street. It’s Emperors’ Night Out as well as the monthly fundraiser benefiting the Shanti Project that provides much needed services to people with terminal, life-threatening or disabling conditions or illnesses. 3pm. http://www.imperialcourtsf.org