The Western-style toilet in my house has illustrated instructions on the lid. For boys, it shows a picture of a man standing facing the toilet. For girls, it shows a picture of a girl sitting on the toilet. The man looks more like he is waiting for the bus, and the girl looks more like she's waiting at the doctor's office. Apparently, when Western-style toilets were first introduced, some people didn't know how to use them and squatted on the seat.
I've never seen instructions on how to use a Japanese-style toilet, however. If I could write the instructions, they would be:
Enter the bathroom and put on the bathroom slippers. I know what you're thinking: Bowling shoes, golf shoes and now I need toilet shoes? Yes. You'll understand why in a moment.