A (non-Jewish) co-worker of mine was telling me about an Orthodox Bar Mitzvah she attended over the weekend. Her observation: the congregants seemed much less respectful of the rituals taking place than she’d expected from such a religious ceremony. All around her, everyone was talking to each other – regardless of whether the Bar Mitzvah boy was reading from the Torah, the rabbi was giving a speech, etc.. She found it appalling.
When I was 19, a bit more religious than I am now, I was sitting in shul next to my mother. During the entire Torah reading and davening, two women in front of me were chatting away, rather loudly. Then, the president got up to read the announcements and the two women to their right began to talk (quietly). One of the first two (chatting-during-davening) women quickly got annoyed and turned to the newest chatter with a loud, “Shush!”
Back to the general topic of talking during ritual/ceremonies: While I haven’t attended that many yeshivish-type shuls to discuss their in-shul chatting or lack thereof, I have been to numerous yeshivish (as well as MO) weddings. And one thing I can say: although there have been a few exceptions to this rule, generally speaking I’ve found that the more religious (/to the right/yeshivish) the wedding, the more (and louder) the chatting.
Maybe, though I’m not sure. Other speculations?