For any task or activity which may require some amount of patient waiting, whether it be anything from catching a bus to buying a loaf of bread, you must always be mindful of other people who have been waiting longer than you. These other people have the right to have their needs tended to before your own given that they have been waiting for longer.
All that is required from you is a quick look around when arriving at the relevant waiting point to determine whether anyone else is due to be dealt with before yourself. Sometimes this will be indicated by people waiting at a counter, but may be more formally represented by a line or queue of people. Common courtesy suggests that you allow these other people to be dealt with first.
If you do see a line or a queue do not think for a moment that wearing an expensive looking business suit will impress other people and give you the right to first service. Also, ignoring a queue and going straight to the front while offering a smile or shrug of the shoulders will likewise not impress your fellow queue companions. Behaviours such as these which display a flagrant disregard for the queue system will not be held in high esteem.
The queue system is a social equaliser meaning that no one person is more important than anyone else, the only important consideration is time spent in wait. If the queue system is not respected and upheld, society as we know it would cease to exist and chaos would reign.
Public Interest Courtesy Rule #1 – Eating food on public transport
Public Interest Courtesy Rule #2 – Use of umbrellas
Public Interest Courtesy Rule #3 – Pedestrian crossing buttons
Public Interest Courtesy Rule #4 – Two way flow of pedestrian traffic