Think of a moment when you were on exactly the same page as someone else. It could be a friend, a partner, family, or someone you met through coincidence. Remember that moment, and then think of what it was about the person that made you feel so in sync Ponder a time when you and another individual were perfectly in sync with each other. It could be a friend, a lover, a family member, or a chance encounter with a stranger. Go back in time and ponder what it was in this individual which made you feel perfectly in sync with him/her.

There's a good chance you'll discover you think the same or feel the same about something. Perhaps you didn't realize it, but you may have breathed or talked the same way. Maybe you've had the same kind of upbringing or the same set of beliefs. Whatever it might be, it will all be a reflection of the same thing, which is the essence rapport. "Rapport is the ability to enter another man's world, making him feel that you understand him, that you have a deep common bond." It's the ability to fully transition from your "map" of the world them.Rapport is the ultimate tool for producing the results with other people

Rapport building skills are among the skills in life a person can have in priority order. To be a good performer or a good sales personality or a good parent or a good friend or a good persuader or a good politician, what you require basically is rapport—rapport as a powerful human bond and relationship of responsiveness
In any relationship between any two people, and you!! find the first thing in any relationship between any two people was something they in common. They may have different ways of doing the same thing, but it's the things in common that initially drew them together. Consider someone you really like and look at what makes him attractive. Isn't it the ways in which he is like you, or at least the way you would like to be? Do you say Wow, this guy thinks the opposite of me on every single thing, and it's a great guy because of it? No, you say, What a smart guy. He's got the ability to look at the world in pretty much the same way I do and even expand my vision. Now consider someone you can't stand. Do you think of him as someone just like you? Do you say Oh, God, what a crummy guy. He thinks the same way I do?
You can begin cultivating rapport right now. We are always communicating and interacting. Rapport is simply doing both in the most effective ways possible.
“If you would win a man to your cause first convince bum that you are bis sincere friend”