...We had pens.
To be exact, instead of using specialty products to keep our fidgety hands busy, we spun pens around our fingers.
As it turns out, this pencil spinning trick was actually a thing, and there are competitions where contestants spun pencils between their fingers using various techniques. The one show above (performed by yours truly btw) is called the "thumbaround" and "reverse thumbaround" because the pencil was spun back and forth around the thumb (duh!).
In fact, in Japan there is a Pen Spinning Association, because of course there is.
Are you a pen spinner?