Art Of Convincing

What is the art of convincing? In my opinion, the art of convincing is an ability that can make people trust in you. It needs a lot of talent that not anybody can do that including me. I am not a person who can really make the people to believe what I said. I don't know why but I have try my best to convincing people and always tell truth. However, I am the person not easily to be convinced. I will just believe in people that always tell me the truth and having the same thought. I will also doubt when I find somebody simply talk about the things without observing. I will try to avoid myself from being close to this kind of person.