If you talk to the mirror long enough, you'll get promoted
Those were the days. If you had enough money and a broad back, any job could be yours. It's a method proven by generations of the Sims. A mirror used to be enough to hone your interviewee skill to perfection. Currently, employees who want to get promoted have to read some books, and do other stupid things (for example, care about their fitness). Training speech remains, however, a very significant factor on the way to a career.
Remember the high school finals? In my day, one of the things you had to do, was to prepare a presentation, learn it by heart, and fit it into like fifteen minutes of talking. The teachers definitely knew what was up, because their main advice for controlling the time of the oral presentation was talking to a mirror. Precision, control, eloquence, time efficiency. Stopwatch in hand, and off we go. Once you mastered this skill, you could go conquering the world. Mainly because it was the last exam, after which, the endless holidays began. But also because after the baptism of fire, you would be able to handle any speech situation, at work and otherwise. The wisdom of The Sims has no limits.