相关材料：In the UK, in business situations, when you meet someone for the first time you shake hands and say, "How do you do". This is not really a question, and the reply to it is another greeting such as "How do you do" or "Hello" or "I'm very pleased to meet you" or, if you have met the person sometime before, "It's good to see you again". You don't shake hands every time you meet someone, you just greet them. If you are invited to someone's house for dinner, it is usual to take a present - some chocolates or flowers or, if you know them quite well, a bottle of wine. If you do not know the host well, don't be the last person to leave. Telephone the next day to thank the host for the meal. English people don't like to talk about personal things, and tend to avoid religion, politics and money. Good topics for small talk (闲谈) are the weather, holidays, weekend activities, gardens and architecture (建筑物), especially houses and homes. When you go to a pub or bar, it's usual to take turns to buy a drink for everyone in your group and pay for the drinks when you get them from the bar and before you drink them.