social customs and ways of behaving change. things which were considered impolite many years ago are now acceptable. to see a woman smoking in public today is not surprising, nor is it always ladies first through doors, or on a crowded bus or train need the man give his seat to a woman. customs also differ from country to country. the important thing to remember about social customs is not to do anything that might make other people feel uncomfortable, especially if they are your guests.
风俗习惯和行为方式的改变。那些很多年前被认为是不礼貌的行为是可以接受。今天看到公共女性吸烟不奇怪也不是小姐第一个，穿过门，或拥挤的公车或火车需要是男人给女人坐。海关也与国。记得关于社会风俗最重要的事是不要做任何可能让其他人感到不舒服，特别是如果他们是你的客人。