How to let others feel comfortable when talking to you?

How to let others feel comfortable when talking to you?

I know how, but sometimes even myself cannot do it. Not easy. Haha.

1. Agree with what he/she tell you. Sometimes its wrong, so don't agree about everything. But if you agree most of the time, he/she will feel you are really easy and comfortable to talk to.
2. When he/she is talking, keep quiet and listen. Don't make too many noise like "em, yes, ya, true, right". This kind of noise is only made when you are making phone call to make sure you are still there and you are still listening.
3. Ask appropriate question. People like to talk what they are good in. When you want to let him/her talk, ask question that you are sure that he/she knows the answer. Best is if you ask something she/he is best in. Then he/she will continue to talk non stop. 
4. If you wanna talk about something, better to let him/her finish her/his talks first. If you are cutting in the middle of his/her talk, of course he/she will not feel comfortable talking to you. So don't cut in people when they are talking.
5. Listen more than talk. People who tend to listen more is more likely to be like by someone. There is one case where a friend of mine, keep on listening only to an aunty to talk, finally the aunty introduce him to other aunties saying "He is so friendly. He is really a good guy". But what has he done? He only listened. So the listen, listen, listen.... is really something. Hahaha.
6. When talking to opposite sex, don't talk about unappropriate things like sex or alcohol. This will make them lost respect to you.

Like i said, its not easy to do this because some of us might like to talk more than listen. So this really takes time to practices. Once you had practices enough, i am sure everyone you talk to will be comfortable with you.