This old saying is a reminder that listening to a presentation is hard
work! (Think back to the last one you sat through.) It’s not like reading
when you dictate the pace and the way you absorb information.
Presenters owe it to their audience to make it easy, to make it simple.

This means being highly selective in what you say, not just condensing
the document. What must they remember? What are the essential,
differentiating and unique elements that dramatize your proposals?

To decide read, and read again, the brief; review against evaluation
score sheet( if known) and your assessment of the prospect.Who
decides , how and when, what is their agenda(personal not just
corporate),what is the competitive position.