Your audience must be emotionally engaged to pay attention to you.  Facts do not engage us emotionally, but stories do.  Stories can make even unpalatable truths partially acceptable because the story can be viewed as not absolute naked truth.  Once the audience is engaged you can then provide facts.

It is difficult for the audience to pay attention to you with the visual media in the foreground or even the background. Begin every presentation with the visual media turned off. Begin with a story that illustrates a fact or facts you are about to present.  Make sure your story is exactly applicable to the issue.  The story must contain enough detail that people can visualize the people and things happening.  The story must also contain some element of tension to be resolved, i.e. a desirable conclusion to a difficult situation. The story should provoke people to think about the issue, not necessarily to conclude any specific direction to be taken.