On June 12, 1987, United States President Ronald Reagan delivered the “Berlin Wall Speech” to a crowd of Germans who lived in West Berlin and to an international television audience at the Brandenburg Gate in front of the Berlin Wall:

And now the Soviets themselves may, in a limited way, be coming to understand the importance of freedom. We hear much from Moscow about a new policy of reform and openness. Some political prisoners have been released. Certain foreign news broadcasts are no longer being jammed. Some economic enterprises have been permitted to operate with greater freedom from state control.

Are these the beginnings of profound changes in the Soviet state? Or are they token gestures, intended to raise false hopes in the West, or to strengthen the Soviet system without changing it?

We welcome change and openness; for we believe that freedom and security go together, that the advance of human liberty can only strengthen the cause of world peace.

There is one sign the Soviets can make that would be unmistakable, that would advance dramatically the cause of freedom and peace.

General Secretary Gorbachev, if you seek peace, if you seek prosperity for the Soviet Union and Eastern Europe, if you seek liberalization: Come here to this gate! Mr. Gorbachev, open this gate! Mr. Gorbachev, tear down this wall!

Based on the excerpt of the Berlin Wall Speech, explain how the audience affects the way Ronald Reagan presents his ideas.