First, pray for his release, and that he would continue to be a strong witness to the gospel of Jesus Christ in prison until he is released.
Second, call Secretary of State John Kerry at the U.S. State Department's Public Information Line at (202) 647-6575, then press option #8. Record a message encouraging Secretary of State John Kerry to prioritize the release of Saeed Abedini from prison in Iran. Keep it simple and to the point, as the recording does not leave you much time.
Third, "Like" the Save Saeed Facebook page and stay updated on the campaign for his release through this page.