Peer pressure galore on the Iowa Rat side, but our GOP side was fairly clean with secret ballots and minimal electioneering. My precinct offered 2 minutes for candidate representatives to speak. Bush, The main difference is you're locked into a specific block of time, instead of voting briefly whenever. It culls the less motivated voters.
You misunderstand the term Australian ballot. It also called secret ballot, is system of voting in which voters mark their choices in privacy on uniform ballots printed and distributed by the government or designate their choices by some other secret means.
http://www.britannica.com/topic/Australian-ballot