Must be what? How was he acting?

[ Before Taako even has a chance to answer, Cisco raises up a hand to halt him for a moment, saying rather gravely: ]

And I'm not asking to be a gossip. This is for science. I need to know what this stuff's doing to people and how many have been affected and a bunch of other stuff, and the quickest way to do that is to start off with as much information as possible.

[ And after all, Cisco doesn't even know this Loki guy, so why would he be that invested in gossip about him, anyway? ]