We love validation. Most of our actions are the outcome of our need for validation. So what is the best way to get people to like you? Give them what they need of course. A simple example, is when you are in a conversation with another person and he says something really important for him. After he finishes, rephrase what he just said in your own words. This will make him think that you are a good listener and that you are really interested in him. It makes him feel he is the center of attention. That’s validation right there.