Most ramen shops use a ticket machine (called a kenbaiki)
right inside the entrance. You order and pay at the machine before sitting down.
Insert cash or coins, press the button for what you want, and you'll get a ticket
for each item. Hand your tickets to the staff when you sit at the counter.
If you order a bowl of ramen and a beer, you'll get three tickets: one for the
ramen, one for the beer, and one receipt. Some newer shops accept IC cards
(Suica/Pasmo) or credit cards, but don't count on it.
Can't read the machine? The top-left button is usually the house special.
Look for an English button on the screen, use your phone to snap a photo and
translate, or just point at anything and the staff will help.
Most ramen shops are cash-only. Be prepared.