"Oh, shit, you have guns? Everybody, watch out, this guy's got guns." Ribbon started waving her arms around in a panicked manner, without once changing the stony expression on her face. "Everyone run for your lives, this man is in possession of firearms. I'll bet he's willing to shoot them, too... not that I've seen him do it..." Ribbon wasn't impressed.
The man was clearly a secretive kind of guy, but in the very least she'd been able to discern that his Affinity had something to do with hiding objects in places where they reasonably shouldn't be able to fit. She could probably piece him together, bit by bit, and that'd do a lot to stop him from becoming dangerous if his motivations did turn out to be something less than benign.
"Alright, in the very least riddle me this. Why were you so desperate to catch a ride with us to Sawmill? It takes a pretty desperate kind of guy to be willing to ride in the trunk of a car, unless hiding yourself in places where you shouldn't really fit's another one of your tricks... or you have a claustrophobia fetish or something..."