Looks at a Nook, say

READS

Think of what you might do with an e-book device, especially when the title hints at a common pastime involving words.

This clue plays on the double meaning of "Nook." On the surface, it refers to the e-reader brand (Nook), where "looks at" hints at reading. But it also works as a pun—"nook" can mean a corner, so "looks at a nook" could literally describe someone peering into a corner, though the answer "READS" fits the first, cleverer interpretation. The "say" signals it’s a wordplay clue, not a literal one.