Meanings of kibbitz in English

Musk loves to kibbitz with fans, answering questions about his tech, making reading and music suggestions, and solving customer-service issues in real time.

He kibbitzed away explaining about scrap metal etc.

Lippy, as usual, was kibbitzing, putting in his two cents' worth whether they were wanted or not.

"So are you here to tell me something useful or just kibbitz while I work?"