@maique my Master’s advisor used to play Snake on his Nokia phone during talks in conferences. That was his way to focus on the talk.
When he was playing, he was paying attention (and would make tons of questions at the end). When he was looking at the presentation, he was sleeping with his eyes open.
Every single time. It was hilarious.
@otaviocc same here, if I sit staring at the presentation, chances are high that I'm very bored. If I sit doodling then I'm probably 100% concentrating on the presentation. If you see me using my phone, I'm probably editing photos 😁