Did you ever have the feeling at a restaurant that it just didn't matter that you were there? That's how a friend and I felt at Nobuo for a late lunch one day. The server wasn't surly, but ... maybe indifferent is the word I'm looking for. Example: He botched the opening of the Japanese soft drink my friend ordered specifically for the opening fizz (it didn't) and just said, "Oh, well, that happens." Not! when the opening show is the only reason for ordering such a high-priced soft drink!
Food was kind of meh, though I did enjoy the bonito flakes waving back and forth on the okonomiyaki. We were especially unimpressed with the pork buns--dry buns, room-temp pork fat--as I said, meh.
We weren't greeted, weren't sped on our way after with a cheery smile, just didn't feel wanted. Not a habit we're going to acquire, for sure.