In actuality, no. I usually don't like people that easily, and since I link liking people to being nice, I am not immediately nice to people. They have to earn it.
I can be civil, I can be polite, I can even help you, but does that mean I like you?
Me being nice/liking you comes after I lower my walls down, I see a spark in you that I like, that I know that you aren't completely out for manipulative gain. You have license to be manipulative...Everyone is in their own way.
But, if you were to wrong me extensively. My niceness ends there. And we start over (that's when second chances come in).