Share 'How fast do you typically walk?'

I'm walking on average between 2.0 and 2.2 mph. My treadmill is old and has a slider for the speed so it's hard to get exact. I'm curious as to how fast others are walking and what you typically do while walking. I am a programmer so I'm working on some programming projects; i.e. lots of typing. I also check all my social networking and other such time wasters. I think if I bump it up, I'll hav…