 And those four words, I am very grateful, can light a fire under your employees. In this study, the people that heard that made an impressive 50 more phone calls the following week. The study concluded that when people in power express gratitude, people perform better and everyone wins. Brian VanMiller, CBS News. CBS News Brief. A more energetic President Biden was on the campaign trail the day after the presidential debate. Donald Trump isn't just a convicted felon. Donald Trump is a one-man crime wave.