Just because he doesn't appear to use the cohort network doesn't mean he isn't fully capable of observing what goes on over it, Lucius.

And here Severus falters a bit, looking (and feeling) much more like one might expect him to at his age.

"-No, I went, some weeks ago, but just to look at it." ... Yeah that sounds awesomely safe, okay. "When you knew me in school, after you'd graduated and I hadn't, near when I was first marked-"

Subject veer, then- "Did you know anything of what I was doing in between terms?"