You may not know this, but I'm an impressionist. Allow me to do my impression of a competent public speaker."
"That's a very good question. See me at the break, and I'll avoid answering it then, too."
"Give a man a fish, and you feed him for a day. Teach a man to fish, and you get rid of him on weekends."
"I'm way overdue for a promotion. I've made so many lateral moves, I'm beside myself."
"I'm not the man I used to be, so why should I have to pay off his debts?"