Do not use too personal theme like politic, health and something like that.
Do not be rude Some people, which are not confident, can be rude to the other people.
Because if the person things, that you do that, it means, that he/she is waiting for the result.
But if you do not do it, the person will not trust you anymore.
Say the truth You should not lie, it is needed to say truth in all the situations.
If you do it every time, people will respect you a lot, because you will have the great reputation.Take the part in the conversation, but you should not speak a lot.It is better to speak not too much, but you should know how to lead the conversation.Care about the other people If you are a CEO, you need to create the comfortable conditions for the people and they will be able to work there good.It does not mean, that you need to do everything for them, but you need to do all possible for their work.But also, if you do not want to do it, you can explain the situation to the other people.They should also understand, that you have your private life and cannot do everything, that they want to do.It means, that you are interested in the conversation and you will not miss any detail.Remember the names If you remember the name of the person and tell him, they will start to respect you.You should understand, that you should work on your job, because it is very important for you.Develop your skills Nobody is perfect, because of it, you should develop your skills every day. Check the people In your first days in the office just look at people, you will find a lot of useful information. For example, you can see, what people wear or like, the themes for the conversation and a lot of the other things.