Once you notice it, dissonance is everywhere.
Once you notice it, it's impossible to ignore.
Watch closely, because once you notice what is not present, the game is given away.
Once you notice that disbelief is possible, then your beliefs can no longer be self-evident.
Her poems are too sly for that; their sophistication, extreme once you notice it, is elusive at first.
But the trouble with historical inaccuracies, even the nitpicky ones, is that once you notice them, they're all you notice.
No one tells you this about Americans, but once you notice it, it becomes one of their defining characteristics, especially when they're abroad.
Once you notice the technique, it's a compelling, puzzle-solving kind of activity to work out what action seems to cause another.
Once you notice that these mainstays of traditional TV sitcoms aren't here – as extinct as the dodo or Ryan Lochte's endorsement deals – you also realize that you don't much miss them.
And once you notice a mountain in this city, you begin to see mountains everywhere, much the same way that a new word, freshly learned, suddenly seems the favorite of every editorial writer.
