There's a widespread custom for the Chazzan to bow, facing the ark, when reciting "Gadlu" with the Torah before carrying it away. The Aruch Hashulach (282:1) says that one should do this, but doesn't ...
The Chazan bows 3 times when reciting "Oseh Shalom..." At the beginning of Kaddish should he bow as well? And if so, when? Occasionally I've seen a Chazan or two bow, but the vast majority don't.
Today at Mincha, the Shaliach tzibbur bowed for each word of Kadosh Kadosh Kadosh, to the left, right, and then center, as we do at the end of Shemoneh Esrei. I have never seen that before. Is there ...