Yeah, I actually had a drone in mind as I made it up, but like you, I was on mobile. Hold on.

[img=http://24.media.tumblr.com/701237787d0b529b95da87fef488fdd7/tumblr_mzpcjifRLG1rsagu3o1_500.jpg]

Judging from the holographic video, the runners can tell that the prototype is about the size of an actual dog. Its head would reach about midway up the thigh of a (human) man. Mr. Johnson would also inform you of this if you asked.

As for Devon's psyche, hm. I guess? Probably not detailed psych profiles, as corporations tend to keep those locked away, but I'm sure Mr. Johnson's employers would have at least some kind of idea of whether he's an introvert or not, stuff like that. (I figure it would be funny if he was an extrovert, being forced to stay on corp ground!)

And the mustache? Well:

[img=http://f.cl.ly/items/2M0q3y0X1u001y1x1d1p/ron-swanson-rules.jpeg]