involve the audience members in some way. For example, you might ask them questions 
or encourage them to ask you questions during your presentation. Or you could have 
them do something (demonstrate the skill you are trying to teach, complete a survey 
or take a test, and so on). Supporting materials can be another useful way to bring your 
presentation to life.
Supporting materials.  Supporting materials often take the form of visuals (for example, 
PowerPoint slides and other projected images, videos, white boards, ﬂip charts, CD 
ROMs, and so on). These visuals can include text, photos, illustrations, cartoons, graphics, 
and maps. Here are a few suggestions to keep in mind regarding supporting materials:
UÊIf you are going to use cartoons, make sure they are funny. Ask some 
friends, family members, or coworkers for their opinions about the cartoons 
you intend to use.
UÊIn some cases, it may be helpful to have props. For example, if you mention 
particular books in your presentation, have copies with you for audience 
members to look at. If you are describing a product, bring it with you and 
display it during the presentation.