Case in point, at Quaker meetings (at least the one i know of), people just sit quietly together, if someone has something they want to say, they get up, talk about it, and sit back down, at the end of the meeting people shake hands and discuss pleasantries.
I hear they also have discussions evenings of which i know less about.
The main thing with the quakers is that they're not well known, and they dont really advertise, so you tend to get people who actually seek out the quakers, and not just people who are going with what they're raised with, or going with whatevers popular.
It sounds a bit culty, but far better than having some asshole preacher stand up for however long and waste peoples time reading irrelevant shit and meaningless platitudes from a thousand year old book.
disclaimer: this knowledge is second hand and may or may not actually be accurate.