That statement is true,
By examining the sales person's facial expression you could spot which words that come out from their voice are sincere.
If the sincerity is spotted when the salesperson is asking for the problem that you have and the solution that they give, they might genuinely believes that their product might help you.
<span>this theory is referred to as: Transformation
In choosing an economic system, transformation refers to creating an adjustment to an existing economic system, by taking the positive aspects of other existing economic system.
For example, a communist country that choose to give more freedom to the private sector in order to attract economic growth</span>
The type of intelligence that allows you to learn to play your first few notes on a saxophone is called fluid intelligence.
