Watch out. Depending on the tone and context in which they’re said, these words combine to various effects. In the presence of a definite danger – a frisbee flung carelessly or a vehicle careening off course – they ring with a flinching impact. Muttered indistinctly and without danger, ‘watch out’ becomes the threat itself, from word of caution to verbal omen. Watch this. With the alteration of a word, caution transforms into excitement. The demand to look twists into a signal of anticipation, uttered, perhaps, by a hopeful entertainer, preparing some spectacle or act of prestidigitation. Now, you’ve got to watch this. Less immediate, less anticipatory, here the pressure to look is pressed further, with renewed urgency, connecting it to social or even civic expectations.