一段精彩的开场白有三种作用。第一,吸引听众的注意力,激发听众的好奇心;第二,概述你演讲的主要内容;第三,向听众阐明听你演讲的必要性。幽默开场白也是很多演讲者经常用到的技巧之一,幽默如果运用得恰当,在吸引听众注意力上能取到很好的效果。它有助于缓和现场气氛,使他们愿意继续听你的演讲。
让我们看一些英语演讲者以幽默的语气来开始他们演讲的开场白:
1. As a speaker, I’ve only had two complaints from audiences. One, that I talk so loud they can’t fall asleep. And two, that I talk so long they can’t stay awake. 

2. Some people suffer from stage fright. I don’t. The stage doesn’t bother me at all. It’s the audience that scares the hell out of me!...
  
3. At one time or another, I think each of us has wished we could turn back the clock. I know if I could turn back the clock just 45 minutes, I’d be the happiest person in this room. Because that’s when I left my speech on the kitchen table...
  
4. I don’t want to brag, but the last time I did this it brought the audience to its feet. And they never sat down again until they reached their cars...  
  
5. If I’m a little hesitant, you’ll have to excuse me. This is the first after-dinner speech I’ve ever made ---except for yelling at my kids in McDonald’s...
  
6. I’m not used to speaking to such a large audience. The one thing that gives me courage is that I’m speaking on my favorite subject --- me.
   
7. People always ask me why I wear a big red ten gallon hat (or some other very noticeable article of clothing) and I tell them. It has to do with taking a positive but practical view of life. For instance, I know that no matter what happens, the good Lord is watching over us. Then again, there are now six billion of us, so I want to make darn sure He can pick me out of the crowd...