Giving a presentation can be a worrying prospect, Nervous about the audience 's important, some speakers read from a prepared text. Such occasions are rarely a success. A reader finds it difficult to engage with an audience in the way that an unscripted speaker can. When you read, your eyes are much of the time, turned down towards your script and thus away from the audience. You do not make eye contact and cannot be properly aware of the way in which your listeners are responding to your words. 

engage with an audience' means-