I work at a technology museum in Europe and give tours to tourists. We have a good deal of exhibits from the US military and therefore many of the tourists who choose to come were in the military or simply care a lot about it. What are some things I can say or should learn about to make smalltalk and build a connection to make the tour comfortable and welcoming? I know facts and stats about our exhibit pieces, but when it comes to the life and social aspect I know nothing and because the tourists are always so open and kind I'd like to be able to "speak their language" so they feel welcome, especially because it's often the one part of their life that brought them to our museum in the first place.