Why does he kneel down when I talk to him?

Hello all, there is this guy- he is a friend of mine. I have only known him for a few months. I noticed something strange about his behavior. When I begin to initiate conversation with him, he will squat down (sometimes kneels down on one knee) and will listen to what I have to say. There are many chairs nearby, but he chooses to kneel down. Why? Also if this matters, I noticed he has been complimenting my hair pretty often. So is this a form of respect, flirting, courtship, to be on the same level as me if you will?
Why does he kneel down when I talk to him?
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