Ordering pizza online, on a Japanese website

I found out they have Dominoes and Pizza Hut in Japan. Since there was a crazy storm with thunder that shook my building and I was working on my presentation, I thought it might be a good day to order pizza (delivery). First I had to figure out how to register on the website, then I had to create a profile that included my address (which is wayyy more detailed than in the US), and finally I had to place the order. At a later point, the website bifurcate into English and Japanese so I was able to place my order in English :-) To reach that point though, I had to click on several buttons for which I had no idea what they said. Thankfully, websites follow the same formulaic organization around the world: click left button for continue/accept and right button for cancel/go back. Also thankfully, some things are translated automatically on my computer so I knew that line asked for email address, password, etc when filling out the profile.

So this is what it is like to be illiterate :-)
My brain got a good workout with what would normally have been a simple task back home.

When the pizza arrived, the man said some things, handed me some things, I handed him some money and thanked him, then he said more stuff I couldn't understand, we exchanged many bows, and he departed. It seemed like he thought I understood what he was saying :-p but I had no idea at all.
The "medium" pizza was tiny! Portions here are so different! I always finish my meals and often go for a snack later. They make me feel like I have lost my ability to control how much I eat. I'm not sure what will happen after I return to the giant US portions.