In the section starting "יוצר אור" at Shacharis, there is a kedusho. When it is said, most people are sitting. I have seen some people who raise themselves slightly as if to get out of their seats for ...
At the beginning of Kedusha, the Chazzan says v'kara zeh el zeh v'amar. I've seen three types of chazzanim with regard to bowing left at the first zeh and right at the second: bow left and right at ...
A shali'ach tzibur I heard recently, in the introductory paragraph of K'dusha on shabas morning read the line "kadavar he'amur al yad n'vi'echa". A fellow audience member said that he does this ...