The introduction of the presentation is like the first impression .It should be good enough to hold the audiences interest. You need to build a relationship with the audience while giving the introduction.
Some of the ways of starting the introduction are:
Story - a small story is a very good way of holding the audiences interest and building a relationship with them.
Question - Asking a pertinent question is another way of connecting with the audience and holding their attention. For example - How may people use a particular product? What is you favorite past time etc. and then connect it to the presentation.
Anecdotes - a real or imaginary incident to hold the audiences interest and connect it to the presentation's objective.
Quotation or phrase- A quotation or phrase which explains the objective.-Example -Think Win-Win
Pointing out to some facts/statistics-Example- do you know that Body language is responsible for 56 % of the message impact?