Din on the other hand will be happy to know someone who knows how things like gunpowder work, because he's not experienced with it and would love a rundown of what it's made of, if they can make more here, etc

As for the wolf killing part, they could either accidentally team up by way of just coincidentally fighting off the same pack, or they could encounter each other at the edge of town, be like "yep you look you know how to fight, wanna drive off that incoming pack together?"