A PWC must be operated in a reasonable and prudent manner. It is illegal to all the three mentioned points.
Explanation:
Weaving a PWC through congested waterway traffic may lead to fatal accidents due to narrow water path ways or some kind of obstruction. One must look for the clear waterway traffic to weave.
One should not operate in a manner that requires swerving at the last possible moment to avoid collision as doing so, again, may result in fatal accidents. It is always better for the operator to play safe while weaving a PWC as there is a very low chance of survival if, unfortunately, one meets with water accidents.
Again, it is never a good idea to jump the wake of another vessel unreasonably or unnecessarily close to that vessel or when visibility is obstructed as the visibility might be just an illusion which may result in unknowingly welcomed fatal accidents.
All people who are shy don't communicate very well with others so it is false
This type of economy is called a Traditional economy as it is based around bartering instead of the buying and selling of goods.
Answer: Intrinsic reward
Explanation: Andy and Jeff have been friends for many years and they feel the pleasure of sharing living space and seeing each other more often because they feel inner satisfaction. This means that no external reward is the cause of their decision; on the contrary, moving into a new apartment will not save them money. The intrinsic reward is therefore not tangible, material but purely internal, spiritual, friendly, whatever, which is not really a reward for an achievement, but a reward for reasons of inner satisfaction and need, and this comes from individual intrinsic motivation. And this is something that naturally suits someone like Andy and Jeff, their intrinsic motivation drives them into internal reward actions, and on the inside makes them rewarded.