I've a touch of second sight, I think--at dinner-parties.' 'Oh, well, I have second sight too--any amount; only it's always wrong.
However!...' 'Aren't the Mitchells dears ?' said Edith.
'Oh, quite.

Do you know them well ?' 'Very well, indeed.

But I've never seen them before.' 'Ah, I see.

Well, now we've found our way here--broken the ice and that sort of thing--we must often come and dine with them, mustn't we, Mrs Ottley?
Can't we come again next week ?' 'Very sweet of you to ask us, I'm sure.' 'Not at all; very jolly of us to turn up.

The boot is on the other leg, or whatever the phrase is.