I think I need to elaborate more..Seriously, people are doing badly in a group level. Be it in the workplace or at school, there are really few people who can do well at a group level.
The process for normal group conversation is simply like this:
A topic/subject is just dwelt into and talked about.
It just continued or it ends and another topic/subject is raised.
I realised that male loves to stick on the topic for quite some time and girls are able to jump from one topic to another.
(Not saying males are dumb, but just one topic minded.) Normally, the topic is just an interest that is shared by most people.
The best advice that I can give you if you want a good conversation is simply get the attention from everyone and talked whatever you want. (Depends on where you are. You do not talk whatever you want in school project or workplace.) Second thing is simply introduce everyone especially those who are quiet one, ask them for their opinions.
Source:
http://www3.d93.k12.id.us/schools/hhs/faculty/walkera/images/F51E5F537A1942F88A6B527293F52A71.gif