Help: Can't right click on a Mac?

Help! I have a prospective tenant with a mac, and he doesn't know how to right click. I don't have a Mac, and also can't find the answer by searching. We're afraid that the answer is embarrassingly simple and right in front of us.

Thanks for any help,
-Avion

If it's a Mighty Mouse, there is a hidden right button area. That might need to be turned on the the system preferences. If it's an older truly one-button mouse or pad, right-click is ctrl-click in everything except Second Life, where it is command-click.

if its a Macbook or Macbook Pro, right click with the touch pad can be enabled in system preferences, you can set it where two finger tap is right click, or hold down two fingers on the pad and click the button for a right click.

i find it funny how many people.. with those machines... i run into that have no clue their pad can right click, and they are always using CTRL.