New York City Mayor Bill de Blasio, visiting California, stepped out of character Friday by taking listener calls during a radio appearance.

Back home, de Blasio has shied away from unfiltered questioning by the public via such forums as call-in radio or town hall meetings. His office wouldn't comment on whether he had ever taken radio listener calls during his 16 months as mayor, as his two immediate predecessors, Michael Bloomberg and Rudy Giuliani, did regularly.

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Two callers got to speak to de Blasio during his nearly 22-minute appearance on San Francisco-based public radio station KQED's "The California Report."

StoryUnlike past mayors, de Blasio avoids public

The first was Patrick of Emeryville, who asked about campaign finance reform.

De Blasio was interviewed on the KQED show as part of a trip to promote his progressive agenda to combat income equality. Following two days each in Washington, D.C., and northern California, he is due to fly back to New York Saturday.