Comment by thisisjasononhn

Eh, so far in my experience nobody's been shouting across the restaurant or hole-in-the-wall place; normally it's a hand wave or signal, or often a button or bell.

Maybe I haven't been going to exciting places...

And as for taking my order before reading the menu, depends how fast you can decypher the translation of whatever app you use :) (assuming a non-Japanese speaker)