This question already has an answer here:
Ok, I am not native English speaker. But in my language there is a word for a person who starts saying good things about you just to get you do what he wants.
It's kind of repulsive to be around such people. You know they don't mean it; they know you don't believe them. But they dare to keep stretching your qualities, and you know what they are coming to. To get you do something for them. In reality they hold no admiration for you, and disregard you as soon as they no longer need you. In fact, you are never sure if any word they speak is from heart, ever. You sometimes feel sorry for them, that their inner person is forever drowned in their lies, censored.
You would usually find these people with kings, who would be like you are the best.