For instance, at a military funeral an honor guard presents the American flag to the next of kin by kneeling in front of the recipient, and I think there's a slight bow of the head as well.
My point here is that many cultures and nationalities (including Americans) have customs, gestures and postures which show reverence, honor, dignified regard and so forth, without conveying adoration as to the Supreme Being.
Some people kneel at a Christmas creche, some bow at the Tomb of the Unknown Soldier. Some get on one knee for a proposal of marriage. Some kneel at the Ground Zero memorial--- and not only religious believers. You get my point. It's a "language of gesture" that doesn't mean the adoration which is is proper for God alone.