gift of the word

I don't know if I can explain this thing but i'll try.
I'm an observant person and the way how some people can be so convincing cause me curiosity, I have known some people that  intrigue, make me ask me if this is something they learn or is something that they born with, they seem so smart, they always get everything they propose. I have seen how they convince the people when they need something from them. maybe is a social mental inteligence like a manipulation but they always talk based on logic or some science, I have to say that not all the people that I know use that to do bad things, but the most do it, I'm very aware about the opinion that I have from some topics but when this kind of person talk about some of this topic I really admire how they talk in a logical way even when they have a diferent posture or against my opinion, they make me see the topic in a more open way.