It's easy, kind of like a big iPod. It has a scroll wheel for moving the cursor, a big "ENTER" button for making selections, and a big read "CAST BALLOT" button for when you're ready to send your ballot through.
A few booths down from me I hear a mother say "All right, baby, now push the red button." immediately followed by "Ma'am, MA'AM! She's not allowed to touch anything!". I look over to see that an election lady is running over to a woman and her adorable little toddler.
Apparently the mother wanted the daughter to push the "CAST BALLOT" button after the mother made the choices.
I can understand that being a rule in some circumstances (parents hovering over their 18+-year-old kids), but does it really matter if a little kid who can't even read pushes the big shiny red button?
On a side note, the mother and daughter were both black and most of the people early voting at that time in that place were black. I was really really happy about that, and it kind of pissed me off that the little girl didn't get to push the button. I know the election lady is enforcing the rules, but it's irksome to see an angry old white lady yell at this happy black family for doing something so innocent and patriotic.
I put my "I Voted" sticker on my Obama bumper sticker and got a thumbs up from an older black woman outside the building as I was opening my door to go back home.
Hooray for America.