Everyone cares about his or her image （形象）． What about you？（1） 　　Have you ever done the following little things to hurt yours？

You don't let people get out of buses or elevators before you get in． It is not good to push yourself into the crowd who's trying to get out anyway．（2） 　　．

You don't cover your mouth while coughing． According to Live Science， one cough can release（释放） as much as 3，000 droplets of saliva（唾沫星子）（3） 　　Covering your mouth is not a choice but an absolute must．

（4） 　　You think your music taste is great？ Perfect， go to study music， to become a DJ，but please don't push your music taste onto other people．

You are rude to waiters． Imagine working for 12 hours， always on your feet， and then dealing with the most rude customers？ Yeah，don't be that person who thinks waiters have to deal with your bad attitude．

Common sense is not so common． （5） 　　

A． You listen to music without headphones． B． Some little things can hurt your image． C． Some serious things may hurt your image． D． And they can fly as fast as 50 miles per hour． E．Don't mind your behavior and do as you like． F． Just stand aside， let people out， and then get in． G． Please watch your behavior and be polite in public．