The statement 'Join me live now on @WBAI radio!' is an invitation to listen to a live radio broadcast. It does not in itself substantively engage with public issues or contribute to civic dialogue. However, the linked content from the WBAI Radio website includes titles that suggest discussions on current events, politics, and social issues, which could constitute public discourse. Since the statement is primarily promotional for a radio show and does not itself address public issues or policies, it does not constitute public discourse.