AmblerTube

I write down what people are saying, either typing or in a notebook. These aren't actual notes that can be used later. It's literally "hear word, write down word". I find it helps me to stay concentrated on what is happening. Or at least it prevents me from engaging in other activity.

Yep. Often, I'm just writing down what people are saying to help me stay engaged. The resulting notes would need a lot of organization afterwards to make them useful, but paying attention in the moment is the main point.