the group interview will show
leadership qualities
stress
communication with possible team mates
how the candidate will face the public and customers
what level of knowledge candidates have
how knowledge is used in a discussion
show your opinion but let the other candidates speak. ignore any candidates who are too aggressive or make any personal remarks. try to avoid getting in one to one conversations. it is always a good idea to have the final statement in a group interview.
generally this is not the final interview and short listed candidates will have a panel or one to one interview.