Frequently hear speakers in front of large groups give directions about exiting, where to sign up for seminars, restrooms, whatever say something like, “you’ll find those at the rear of the auditorium on my left, your right.” Speaker principle is pretty simple: who cares how it looks to you, Mr. (Ms.) Speaker. It isn’t about you. It’s about the listener. Topics, directions, values, reasons, and points should all be given in the perspective of the listener (unless you’re telling a first-person story, I suppose). Put it in their terms.
Make your points from the context of and for the benefit of your listeners.