1.First of all,allow me to conduct a survey which is related to my presentation.If all of you here were to receive a million dollars,you're free to do anything you'd like with the money,provided that you would spend all of it within 24 hours.I'm giving you 3 minutes to describe your spending plan,I would give a small gift so long as one of the things you put down matches mine.
2.Thank you for participating.
3.I am happy to announce that I will give each of you a small gift based on the survey results.
4.Don't bother to turn off the light,it's okay to leave it on.