When the President of the United States comes to speak, it's a rare opportunity. You get there hours early because of the mass of people that will be there, and it's hard to find a place to park. Once you get in, you have to wait until he arrives. Finally, you can hear a ripple go through the crowd as they hang the presidential seal on the podium. "Ladies and gentlemen, the President of the United States." Everybody gives him an ovation that lasts quite a while, and when the applause dies down, he begins to speak. While he speaks, nobody leaves. When you go to hear someone important, you don't just applaud and leave. You stay after the applause to hear what they have to say.