I am honored to have a chance to introduce myself.
Words can't express how lucky and thankful I am .
Today I want to talk to you about.
I sincerely hope that you will have a wonderful time tonight.
I know I speak for...
I want to remind you that it's never too late to learn.
I wish you the best of luck in everything you do.
Ask not what.. can do for you. Ask what you can do for...
... means a great deal to....