Naomi Rhode talked about several speeches we give--EVERY time we speak. 

There's the speech you plan. 

The speech you give. 

The speech you wish you had given.

The one the audience heard.

And the most important speech is the one the audience acted upon. 

This is their interpretation and use of your message.  We can plan our points, speak with eloquence.  And the audience will make up their own minds and decide what's important.  Every time. 

I'm amazed after my shows at what people remember of my act.  For instance, one person told me, "I love winter, too!  So when you talked about taking off your bumper sticker that read, "Winter Feels Good!" I laughed so hard!"  Another was smitten by my, "I just make you take off your glasses."  She told me, "I'm going to USE that next time someone comes to my house!" 

In the end, we as speakers are only as good as our message.  And our audience always has the last word.  

Which speech will YOU give?