One of the best ways to realize the importance of communication is through simple services, such as getting a shoeshine, ordering hotel room service, or taking advantage of
valet parking. In these situations the people providing the service must act quickly to show their value and win a large tip. If they fail to show their value, they risk selling themselves short and losing out on the extra cash. You can always tell how good someone is at these sorts of jobs because they communicate their value, or lack thereof, usually early on in their interactions.