Carterton Voice, a group of residents who describe themselves as "sceptical" of the Local Government Commission's super-city proposal, have launched a series of events and workshops to raise awareness and encourage submissions on the proposal.
The group, which was formed last year, has set up a website and Facebook page, and is encouraging people to join its mailing list by collecting residential email addresses outside Carterton New World.
Carterton Voice member Mick Campbell, who is manning the desk outside the supermarket every day this week, said it was encouraging a lot of "friendly debate".
"We've had lots of debate from people. People are passionate about it either way."
He said it was important people understood that a referendum was not automatic.