I think this goes along with his observations of speed/typing error rate correlation: go slow. He's only going .5 an hour, typical walking speed is 3mph, so he'

I think this goes along with his observations of speed/typing error rate correlation: go slow. He's only going .5 an hour, typical walking speed is 3mph, so he's not likely to be winded. However, it could make considerable noise (enough to effect a phone call).