How to do public presentations?

FIRST OF ALL, the person thast going to give the presentation needs to be well prepared, that means he or she has to be well informed of what is he or she going to talk about. what's the Titule thas is apropied for such presentation, the objectives of the presentation, the body and conclutions.

He or she must be ready for questions and has to be prepared for answer all of them whitout leaving any kind of confusion in the audiance.

Finaly, the time is very important in a public presentation, becouse it marks if the presentation is well prepared or overwell prepared (longest presentations, tend to bored the audiance).