Almost every conversation you will ever have will require you to persuade another person to your point of view. Whether it's choosing a lunch location, asking for help with a project, or going out on a date, all communication begins by understanding that your must speak in a language that the other party understands. Is that scary to you? Are you saying, "why do I have to change how I say things to get what I want?" Think of it this way. If you were in a foreign country, you would likely have no choice but to translate your message into another language. The same thing happens when you communicate in day-to-day life. Every person on the planet has their own view of the world based on experience and hears things differently. To communicate effectively; you need to speak to be understood. Your words may change, but your message remains same.
