One recent morning, I became a grown-up: I attempted to remove glasses from my face that were already in my fist.
For those of you who are lifelong glasses-wearers (it is almost 40 years for me), you know that there are several distinct methods of removing eyeglasses—and, even better, there are several non-verbal messages that can be communicated in the manner of their removal.
Off the top of my head, which is not where I keep my glasses, there is “Two-handed and Thoughtful,” “One-handed and from the Right and Peeved” (I usually accidentally fling my glasses to the floor or across my desk with that one), and “One-handed and from the Left and Trying to (Honestly) Get to the Heart of Things.” There are some others. Putting them on in front of people usually communicates this: “Enough Fun, Everyone. It’s Time to Get Back to Work.”
It can be like semaphore, but not at all and with glasses.