The real meaning of marketing (Very truthful ^o^)

The Buzzword in today's business world is --> Marketing, but people often ask about the simple definition of it. So what are some different marketing strategies?
The video is using one simple concept of how a woman and a man's conversation in a party can turn out to be a great way of promotion (marketing).
We learned in class that to promote a business' product/service requires good "promotion" technique. A commercial can catch your eye in 5 seconds if it's done successfully whereas a bad advertisement can be totally useless even it lasted for 10 minutes.
This video is using a real life conversation and different ways of saying the same thing but giving people different feeling about it. It can be persuasive, can be funny, and it can be useful in real life.