Any engagement should be on the articles of the United States constitution. Iranians in Iran should have the same rights as US citizens before any engagement is started. You cannot engage with persons that do not represent Iran and are illegitimate in view of the citizens of Iran. "Biden said if the Iranian government seeks to engage in a dialogue with the United States, the U.S. will engage. "If the Iranians respond to the offer of engagement, we will engage," Biden said. Biden said. "The offer's on the table."" My advice is don't fall into this trap as it will harm US!!!!