Spike has a tendency to wander, but although every now and then he wanders with purpose -- listening to conversations he passes, making notes of areas to revisit -- it doesn't look any different from the outside. He simply shuffles through the streets with an apple in his hand. No reason to suspect he's interesting at all.

So maybe he's starved for conversation, or maybe it's that barely noticeable black eye, that causes him to glance at the man he passes while taking a bite of fruit. That's the trouble with having keener than usual eyesight.

"How's it going?"