I have adopted this a couple of years ago after stumbling upon a video about this.

I work as a web architect. Whenever I am involved in a large production deployment, I don't just go through the checklists. I verbally call out each configuration/setting pointing my finger at the specific line on the screen.

Although, I don't call out as loud as the Japanese train staff are seen doing. It helped me with being more conscious and not oversee things or skip items in the checklist.