Yay, I'm done! What a relief! I had to look up the name of the Green Party candidate first then I was ready to rumble.
When you go vote, you'll receive two ballots, the smaller one is for the referendum, and the bigger one has both the candidates' names and the parties they belong to. Wow, I don't remember Elections Ontario or Canada being that helpful before, actually putting the party name next to the candidate name. I didn't have to take the trouble to look up the Green Party candidate after all; still it was good to check out the candidate's site.
Now when you go to fill in the circle next to "The alternative electoral system proposed by the Citizens' Assembly (Mixed Member Proportional)", remember to simply mark an x and only an x. If you put any other mark in that circle -- the beginnings of a checkmark, filling in the circle, a word -- even if you then mark an x over it, they'll discard it as a spoiled ballot and your vote won't count. So remember to put an x, only an x, and nothing but an x. And if you screw it up, don't be shy, ask for another ballot. They'll be happy to comply.